| Path : /usr/bin/ |
|
|
| Current File : //usr/bin/automake-1.9 |
#!/usr/bin/perl -w
# -*- perl -*-
# Generated from automake.in; do not edit by hand.
eval 'case $# in 0) exec /usr/bin/perl -S "$0";; *) exec /usr/bin/perl -S "$0" "$@";; esac'
if 0;
# automake - create Makefile.in from Makefile.am
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2, or (at your option)
# any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.
# Originally written by David Mackenzie <djm@gnu.ai.mit.edu>.
# Perl reimplementation by Tom Tromey <tromey@redhat.com>.
package Language;
BEGIN
{
my $perllibdir = $ENV{'perllibdir'} || '/usr/share/automake-1.9';
unshift @INC, (split ':', $perllibdir);
# Override SHELL. This is required on DJGPP so that system() uses
# bash, not COMMAND.COM which doesn't quote arguments properly.
# Other systems aren't expected to use $SHELL when Automake
# runs, but it should be safe to drop the `if DJGPP' guard if
# it turns up other systems need the same thing. After all,
# if SHELL is used, ./configure's SHELL is always better than
# the user's SHELL (which may be something like tcsh).
$ENV{'SHELL'} = '/bin/sh' if exists $ENV{'DJGPP'};
}
use Automake::Struct;
struct (# Short name of the language (c, f77...).
'name' => "\$",
# Nice name of the language (C, Fortran 77...).
'Name' => "\$",
# List of configure variables which must be defined.
'config_vars' => '@',
'ansi' => "\$",
# `pure' is `1' or `'. A `pure' language is one where, if
# all the files in a directory are of that language, then we
# do not require the C compiler or any code to call it.
'pure' => "\$",
'autodep' => "\$",
# Name of the compiling variable (COMPILE).
'compiler' => "\$",
# Content of the compiling variable.
'compile' => "\$",
# Flag to require compilation without linking (-c).
'compile_flag' => "\$",
'extensions' => '@',
# A subroutine to compute a list of possible extensions of
# the product given the input extensions.
# (defaults to a subroutine which returns ('.$(OBJEXT)', '.lo'))
'output_extensions' => "\$",
# A list of flag variables used in 'compile'.
# (defaults to [])
'flags' => "@",
# Any tag to pass to libtool while compiling.
'libtool_tag' => "\$",
# The file to use when generating rules for this language.
# The default is 'depend2'.
'rule_file' => "\$",
# Name of the linking variable (LINK).
'linker' => "\$",
# Content of the linking variable.
'link' => "\$",
# Name of the linker variable (LD).
'lder' => "\$",
# Content of the linker variable ($(CC)).
'ld' => "\$",
# Flag to specify the output file (-o).
'output_flag' => "\$",
'_finish' => "\$",
# This is a subroutine which is called whenever we finally
# determine the context in which a source file will be
# compiled.
'_target_hook' => "\$");
sub finish ($)
{
my ($self) = @_;
if (defined $self->_finish)
{
&{$self->_finish} ();
}
}
sub target_hook ($$$$%)
{
my ($self) = @_;
if (defined $self->_target_hook)
{
&{$self->_target_hook} (@_);
}
}
package Automake;
use strict;
use Automake::Config;
use Automake::General;
use Automake::XFile;
use Automake::Channels;
use Automake::ChannelDefs;
use Automake::Configure_ac;
use Automake::FileUtils;
use Automake::Location;
use Automake::Condition qw/TRUE FALSE/;
use Automake::DisjConditions;
use Automake::Options;
use Automake::Version;
use Automake::Variable;
use Automake::VarDef;
use Automake::Rule;
use Automake::RuleDef;
use Automake::Wrap 'makefile_wrap';
use File::Basename;
use File::Spec;
use Carp;
## ----------- ##
## Constants. ##
## ----------- ##
# Some regular expressions. One reason to put them here is that it
# makes indentation work better in Emacs.
# Writing singled-quoted-$-terminated regexes is a pain because
# perl-mode thinks of $' as the ${'} variable (instead of a $ followed
# by a closing quote. Letting perl-mode think the quote is not closed
# leads to all sort of misindentations. On the other hand, defining
# regexes as double-quoted strings is far less readable. So usually
# we will write:
#
# $REGEX = '^regex_value' . "\$";
my $IGNORE_PATTERN = '^\s*##([^#\n].*)?\n';
my $WHITE_PATTERN = '^\s*' . "\$";
my $COMMENT_PATTERN = '^#';
my $TARGET_PATTERN='[$a-zA-Z_.@%][-.a-zA-Z0-9_(){}/$+@%]*';
# A rule has three parts: a list of targets, a list of dependencies,
# and optionally actions.
my $RULE_PATTERN =
"^($TARGET_PATTERN(?:(?:\\\\\n|\\s)+$TARGET_PATTERN)*) *:([^=].*|)\$";
# Only recognize leading spaces, not leading tabs. If we recognize
# leading tabs here then we need to make the reader smarter, because
# otherwise it will think rules like `foo=bar; \' are errors.
my $ASSIGNMENT_PATTERN = '^ *([^ \t=:+]*)\s*([:+]?)=\s*(.*)' . "\$";
# This pattern recognizes a Gnits version id and sets $1 if the
# release is an alpha release. We also allow a suffix which can be
# used to extend the version number with a "fork" identifier.
my $GNITS_VERSION_PATTERN = '\d+\.\d+([a-z]|\.\d+)?(-[A-Za-z0-9]+)?';
my $IF_PATTERN = '^if\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*)\s*(?:#.*)?' . "\$";
my $ELSE_PATTERN =
'^else(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
my $ENDIF_PATTERN =
'^endif(?:\s+(!?)\s*([A-Za-z][A-Za-z0-9_]*))?\s*(?:#.*)?' . "\$";
my $PATH_PATTERN = '(\w|[+/.-])+';
# This will pass through anything not of the prescribed form.
my $INCLUDE_PATTERN = ('^include\s+'
. '((\$\(top_srcdir\)/' . $PATH_PATTERN . ')'
. '|(\$\(srcdir\)/' . $PATH_PATTERN . ')'
. '|([^/\$]' . $PATH_PATTERN . '))\s*(#.*)?' . "\$");
# Match `-d' as a command-line argument in a string.
my $DASH_D_PATTERN = "(^|\\s)-d(\\s|\$)";
# Directories installed during 'install-exec' phase.
my $EXEC_DIR_PATTERN =
'^(?:bin|sbin|libexec|sysconf|localstate|lib|pkglib|.*exec.*)' . "\$";
# Values for AC_CANONICAL_*
use constant AC_CANONICAL_BUILD => 1;
use constant AC_CANONICAL_HOST => 2;
use constant AC_CANONICAL_TARGET => 3;
# Values indicating when something should be cleaned.
use constant MOSTLY_CLEAN => 0;
use constant CLEAN => 1;
use constant DIST_CLEAN => 2;
use constant MAINTAINER_CLEAN => 3;
# Libtool files.
my @libtool_files = qw(ltmain.sh config.guess config.sub);
# ltconfig appears here for compatibility with old versions of libtool.
my @libtool_sometimes = qw(ltconfig ltcf-c.sh ltcf-cxx.sh ltcf-gcj.sh);
# Commonly found files we look for and automatically include in
# DISTFILES.
my @common_files =
(qw(ABOUT-GNU ABOUT-NLS AUTHORS BACKLOG COPYING COPYING.DOC COPYING.LIB
COPYING.LESSER ChangeLog INSTALL NEWS README THANKS TODO
ansi2knr.1 ansi2knr.c compile config.guess config.rpath config.sub
depcomp elisp-comp install-sh libversion.in mdate-sh missing
mkinstalldirs py-compile texinfo.tex ylwrap),
@libtool_files, @libtool_sometimes);
# Commonly used files we auto-include, but only sometimes. This list
# is used for the --help output only.
my @common_sometimes =
qw(aclocal.m4 acconfig.h config.h.top config.h.bot configure
configure.ac configure.in stamp-vti);
# Standard directories from the GNU Coding Standards, and additional
# pkg* directories from Automake. Stored in a hash for fast member check.
my %standard_prefix =
map { $_ => 1 } (qw(bin data exec include info lib libexec lisp
localstate man man1 man2 man3 man4 man5 man6
man7 man8 man9 oldinclude pkgdatadir
pkgincludedir pkglibdir sbin sharedstate
sysconf));
# Copyright on generated Makefile.ins.
my $gen_copyright = "\
# Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
# 2003, 2004, 2005 Free Software Foundation, Inc.
# This Makefile.in is free software; the Free Software Foundation
# gives unlimited permission to copy and/or distribute it,
# with or without modifications, as long as this notice is preserved.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
# PARTICULAR PURPOSE.
";
# These constants are returned by lang_*_rewrite functions.
# LANG_SUBDIR means that the resulting object file should be in a
# subdir if the source file is. In this case the file name cannot
# have `..' components.
use constant LANG_IGNORE => 0;
use constant LANG_PROCESS => 1;
use constant LANG_SUBDIR => 2;
# These are used when keeping track of whether an object can be built
# by two different paths.
use constant COMPILE_LIBTOOL => 1;
use constant COMPILE_ORDINARY => 2;
# We can't always associate a location to a variable or a rule,
# when its defined by Automake. We use INTERNAL in this case.
use constant INTERNAL => new Automake::Location;
## ---------------------------------- ##
## Variables related to the options. ##
## ---------------------------------- ##
# TRUE if we should always generate Makefile.in.
my $force_generation = 1;
# From the Perl manual.
my $symlink_exists = (eval 'symlink ("", "");', $@ eq '');
# TRUE if missing standard files should be installed.
my $add_missing = 0;
# TRUE if we should copy missing files; otherwise symlink if possible.
my $copy_missing = 0;
# TRUE if we should always update files that we know about.
my $force_missing = 0;
## ---------------------------------------- ##
## Variables filled during files scanning. ##
## ---------------------------------------- ##
# Name of the configure.ac file.
my $configure_ac;
# Files found by scanning configure.ac for LIBOBJS.
my %libsources = ();
# Names used in AC_CONFIG_HEADER call.
my @config_headers = ();
# Names used in AC_CONFIG_LINKS call.
my @config_links = ();
# Directory where output files go. Actually, output files are
# relative to this directory.
my $output_directory;
# List of Makefile.am's to process, and their corresponding outputs.
my @input_files = ();
my %output_files = ();
# Complete list of Makefile.am's that exist.
my @configure_input_files = ();
# List of files in AC_CONFIG_FILES/AC_OUTPUT without Makefile.am's,
# and their outputs.
my @other_input_files = ();
# Where each AC_CONFIG_FILES/AC_OUTPUT/AC_CONFIG_LINK/AC_CONFIG_HEADER appears.
# The keys are the files created by these macros.
my %ac_config_files_location = ();
# Directory to search for configure-required files. This
# will be computed by &locate_aux_dir and can be set using
# AC_CONFIG_AUX_DIR in configure.ac.
# $CONFIG_AUX_DIR is the `raw' directory, valid only in the source-tree.
my $config_aux_dir = '';
my $config_aux_dir_set_in_configure_ac = 0;
# $AM_CONFIG_AUX_DIR is prefixed with $(top_srcdir), so it can be used
# in Makefiles.
my $am_config_aux_dir = '';
# Whether AM_GNU_GETTEXT has been seen in configure.ac.
my $seen_gettext = 0;
# Whether AM_GNU_GETTEXT([external]) is used.
my $seen_gettext_external = 0;
# Where AM_GNU_GETTEXT appears.
my $ac_gettext_location;
# Lists of tags supported by Libtool.
my %libtool_tags = ();
# Most important AC_CANONICAL_* macro seen so far.
my $seen_canonical = 0;
# Location of that macro.
my $canonical_location;
# Where AM_MAINTAINER_MODE appears.
my $seen_maint_mode;
# Actual version we've seen.
my $package_version = '';
# Where version is defined.
my $package_version_location;
# TRUE if we've seen AC_ENABLE_MULTILIB.
my $seen_multilib = 0;
# TRUE if we've seen AM_PROG_CC_C_O
my $seen_cc_c_o = 0;
# Where AM_INIT_AUTOMAKE is called;
my $seen_init_automake = 0;
# TRUE if we've seen AM_AUTOMAKE_VERSION.
my $seen_automake_version = 0;
# Hash table of discovered configure substitutions. Keys are names,
# values are `FILE:LINE' strings which are used by error message
# generation.
my %configure_vars = ();
# Files included by $configure_ac.
my @configure_deps = ();
# Greatest timestamp of configure's dependencies.
my $configure_deps_greatest_timestamp = 0;
# Hash table of AM_CONDITIONAL variables seen in configure.
my %configure_cond = ();
# This maps extensions onto language names.
my %extension_map = ();
# List of the DIST_COMMON files we discovered while reading
# configure.in
my $configure_dist_common = '';
# This maps languages names onto objects.
my %languages = ();
# List of targets we must always output.
# FIXME: Complete, and remove falsely required targets.
my %required_targets =
(
'all' => 1,
'dvi' => 1,
'pdf' => 1,
'ps' => 1,
'info' => 1,
'install-info' => 1,
'install' => 1,
'install-data' => 1,
'install-exec' => 1,
'uninstall' => 1,
# FIXME: Not required, temporary hacks.
# Well, actually they are sort of required: the -recursive
# targets will run them anyway...
'dvi-am' => 1,
'pdf-am' => 1,
'ps-am' => 1,
'info-am' => 1,
'install-data-am' => 1,
'install-exec-am' => 1,
'installcheck-am' => 1,
'uninstall-am' => 1,
'install-man' => 1,
);
# Set to 1 if this run will create the Makefile.in that distribute
# the files in config_aux_dir.
my $automake_will_process_aux_dir = 0;
# The name of the Makefile currently being processed.
my $am_file = 'BUG';
################################################################
## ------------------------------------------ ##
## Variables reset by &initialize_per_input. ##
## ------------------------------------------ ##
# Basename and relative dir of the input file.
my $am_file_name;
my $am_relative_dir;
# Same but wrt Makefile.in.
my $in_file_name;
my $relative_dir;
# Greatest timestamp of the output's dependencies (excluding
# configure's dependencies).
my $output_deps_greatest_timestamp;
# These two variables are used when generating each Makefile.in.
# They hold the Makefile.in until it is ready to be printed.
my $output_rules;
my $output_vars;
my $output_trailer;
my $output_all;
my $output_header;
# This is the conditional stack, updated on if/else/endif, and
# used to build Condition objects.
my @cond_stack;
# This holds the set of included files.
my @include_stack;
# This holds a list of directories which we must create at `dist'
# time. This is used in some strange scenarios involving weird
# AC_OUTPUT commands.
my %dist_dirs;
# List of dependencies for the obvious targets.
my @all;
my @check;
my @check_tests;
# Keys in this hash table are files to delete. The associated
# value tells when this should happen (MOSTLY_CLEAN, DIST_CLEAN, etc.)
my %clean_files;
# Keys in this hash table are object files or other files in
# subdirectories which need to be removed. This only holds files
# which are created by compilations. The value in the hash indicates
# when the file should be removed.
my %compile_clean_files;
# Keys in this hash table are directories where we expect to build a
# libtool object. We use this information to decide what directories
# to delete.
my %libtool_clean_directories;
# Value of `$(SOURCES)', used by tags.am.
my @sources;
# Sources which go in the distribution.
my @dist_sources;
# This hash maps object file names onto their corresponding source
# file names. This is used to ensure that each object is created
# by a single source file.
my %object_map;
# This hash maps object file names onto an integer value representing
# whether this object has been built via ordinary compilation or
# libtool compilation (the COMPILE_* constants).
my %object_compilation_map;
# This keeps track of the directories for which we've already
# created dirstamp code. Keys are directories, values are stamp files.
# Several keys can share the same stamp files if they are equivalent
# (as are `.//foo' and `foo').
my %directory_map;
# All .P files.
my %dep_files;
# This is a list of all targets to run during "make dist".
my @dist_targets;
# Keys in this hash are the basenames of files which must depend on
# ansi2knr. Values are either the empty string, or the directory in
# which the ANSI source file appears; the directory must have a
# trailing `/'.
my %de_ansi_files;
# This is the name of the redirect `all' target to use.
my $all_target;
# This keeps track of which extensions we've seen (that we care
# about).
my %extension_seen;
# This is random scratch space for the language finish functions.
# Don't randomly overwrite it; examine other uses of keys first.
my %language_scratch;
# We keep track of which objects need special (per-executable)
# handling on a per-language basis.
my %lang_specific_files;
# This is set when `handle_dist' has finished. Once this happens,
# we should no longer push on dist_common.
my $handle_dist_run;
# Used to store a set of linkers needed to generate the sources currently
# under consideration.
my %linkers_used;
# True if we need `LINK' defined. This is a hack.
my $need_link;
# Was get_object_extension run?
# FIXME: This is a hack. a better switch should be found.
my $get_object_extension_was_run;
# Record each file processed by make_paragraphs.
my %transformed_files;
################################################################
# var_SUFFIXES_trigger ($TYPE, $VALUE)
# ------------------------------------
# This is called by Automake::Variable::define() when SUFFIXES
# is defined ($TYPE eq '') or appended ($TYPE eq '+').
# The work here needs to be performed as a side-effect of the
# macro_define() call because SUFFIXES definitions impact
# on $KNOWN_EXTENSIONS_PATTERN which is used used when parsing
# the input am file.
sub var_SUFFIXES_trigger ($$)
{
my ($type, $value) = @_;
accept_extensions (split (' ', $value));
}
Automake::Variable::hook ('SUFFIXES', \&var_SUFFIXES_trigger);
################################################################
## --------------------------------- ##
## Forward subroutine declarations. ##
## --------------------------------- ##
sub register_language (%);
sub file_contents_internal ($$$%);
sub define_files_variable ($\@$$);
# &initialize_per_input ()
# ------------------------
# (Re)-Initialize per-Makefile.am variables.
sub initialize_per_input ()
{
reset_local_duplicates ();
$am_file_name = '';
$am_relative_dir = '';
$in_file_name = '';
$relative_dir = '';
$output_deps_greatest_timestamp = 0;
$output_rules = '';
$output_vars = '';
$output_trailer = '';
$output_all = '';
$output_header = '';
Automake::Options::reset;
Automake::Variable::reset;
Automake::Rule::reset;
@cond_stack = ();
@include_stack = ();
%dist_dirs = ();
@all = ();
@check = ();
@check_tests = ();
%clean_files = ();
@sources = ();
@dist_sources = ();
%object_map = ();
%object_compilation_map = ();
%directory_map = ();
%dep_files = ();
@dist_targets = ();
%de_ansi_files = ();
$all_target = '';
%extension_seen = ();
%language_scratch = ();
%lang_specific_files = ();
$handle_dist_run = 0;
$need_link = 0;
$get_object_extension_was_run = 0;
%compile_clean_files = ();
# We always include `.'. This isn't strictly correct.
%libtool_clean_directories = ('.' => 1);
%transformed_files = ();
}
################################################################
# Initialize our list of languages that are internally supported.
# C.
register_language ('name' => 'c',
'Name' => 'C',
'config_vars' => ['CC'],
'ansi' => 1,
'autodep' => '',
'flags' => ['CFLAGS', 'CPPFLAGS'],
'compiler' => 'COMPILE',
'compile' => '$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)',
'lder' => 'CCLD',
'ld' => '$(CC)',
'linker' => 'LINK',
'link' => '$(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'compile_flag' => '-c',
'libtool_tag' => 'CC',
'extensions' => ['.c'],
'_finish' => \&lang_c_finish);
# C++.
register_language ('name' => 'cxx',
'Name' => 'C++',
'config_vars' => ['CXX'],
'linker' => 'CXXLINK',
'link' => '$(CXXLD) $(AM_CXXFLAGS) $(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'CXX',
'flags' => ['CXXFLAGS', 'CPPFLAGS'],
'compile' => '$(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)',
'compiler' => 'CXXCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'CXX',
'lder' => 'CXXLD',
'ld' => '$(CXX)',
'pure' => 1,
'extensions' => ['.c++', '.cc', '.cpp', '.cxx', '.C']);
# Objective C.
register_language ('name' => 'objc',
'Name' => 'Objective C',
'config_vars' => ['OBJC'],
'linker' => 'OBJCLINK',,
'link' => '$(OBJCLD) $(AM_OBJCFLAGS) $(OBJCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'OBJC',
'flags' => ['OBJCFLAGS', 'CPPFLAGS'],
'compile' => '$(OBJC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_OBJCFLAGS) $(OBJCFLAGS)',
'compiler' => 'OBJCCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'lder' => 'OBJCLD',
'ld' => '$(OBJC)',
'pure' => 1,
'extensions' => ['.m']);
# Headers.
register_language ('name' => 'header',
'Name' => 'Header',
'extensions' => ['.h', '.H', '.hxx', '.h++', '.hh',
'.hpp', '.inc'],
# No output.
'output_extensions' => sub { return () },
# Nothing to do.
'_finish' => sub { });
# Yacc (C & C++).
register_language ('name' => 'yacc',
'Name' => 'Yacc',
'config_vars' => ['YACC'],
'flags' => ['YFLAGS'],
'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
'compiler' => 'YACCCOMPILE',
'extensions' => ['.y'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
return ($ext,) },
'rule_file' => 'yacc',
'_finish' => \&lang_yacc_finish,
'_target_hook' => \&lang_yacc_target_hook);
register_language ('name' => 'yaccxx',
'Name' => 'Yacc (C++)',
'config_vars' => ['YACC'],
'rule_file' => 'yacc',
'flags' => ['YFLAGS'],
'compiler' => 'YACCCOMPILE',
'compile' => '$(YACC) $(YFLAGS) $(AM_YFLAGS)',
'extensions' => ['.y++', '.yy', '.yxx', '.ypp'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/y/c/;
return ($ext,) },
'_finish' => \&lang_yacc_finish,
'_target_hook' => \&lang_yacc_target_hook);
# Lex (C & C++).
register_language ('name' => 'lex',
'Name' => 'Lex',
'config_vars' => ['LEX'],
'rule_file' => 'lex',
'flags' => ['LFLAGS'],
'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
'compiler' => 'LEXCOMPILE',
'extensions' => ['.l'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
return ($ext,) },
'_finish' => \&lang_lex_finish,
'_target_hook' => \&lang_lex_target_hook);
register_language ('name' => 'lexxx',
'Name' => 'Lex (C++)',
'config_vars' => ['LEX'],
'rule_file' => 'lex',
'flags' => ['LFLAGS'],
'compile' => '$(LEX) $(LFLAGS) $(AM_LFLAGS)',
'compiler' => 'LEXCOMPILE',
'extensions' => ['.l++', '.ll', '.lxx', '.lpp'],
'output_extensions' => sub { (my $ext = $_[0]) =~ tr/l/c/;
return ($ext,) },
'_finish' => \&lang_lex_finish,
'_target_hook' => \&lang_lex_target_hook);
# Assembler.
register_language ('name' => 'asm',
'Name' => 'Assembler',
'config_vars' => ['CCAS', 'CCASFLAGS'],
'flags' => ['CCASFLAGS'],
# Users can set AM_ASFLAGS to includes DEFS, INCLUDES,
# or anything else required. They can also set AS.
'compile' => '$(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)',
'compiler' => 'CCASCOMPILE',
'compile_flag' => '-c',
'extensions' => ['.s', '.S'],
# With assembly we still use the C linker.
'_finish' => \&lang_c_finish);
# Fortran 77
register_language ('name' => 'f77',
'Name' => 'Fortran 77',
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'flags' => ['FFLAGS'],
'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS)',
'compiler' => 'F77COMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'lder' => 'F77LD',
'ld' => '$(F77)',
'pure' => 1,
'extensions' => ['.f', '.for']);
# Fortran
register_language ('name' => 'fc',
'Name' => 'Fortran',
'linker' => 'FCLINK',
'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'flags' => ['FCFLAGS'],
'compile' => '$(FC) $(AM_FCFLAGS) $(FCFLAGS)',
'compiler' => 'FCCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'lder' => 'FCLD',
'ld' => '$(FC)',
'pure' => 1,
'extensions' => ['.f90', '.f95']);
# Preprocessed Fortran
register_language ('name' => 'ppfc',
'Name' => 'Preprocessed Fortran',
'config_vars' => ['FC'],
'linker' => 'FCLINK',
'link' => '$(FCLD) $(AM_FCFLAGS) $(FCFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'FCLD',
'ld' => '$(FC)',
'flags' => ['FCFLAGS', 'CPPFLAGS'],
'compiler' => 'PPFCCOMPILE',
'compile' => '$(FC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FCFLAGS) $(FCFLAGS)',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'FC',
'pure' => 1,
'extensions' => ['.F90','.F95']);
# Preprocessed Fortran 77
#
# The current support for preprocessing Fortran 77 just involves
# passing `$(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS)
# $(CPPFLAGS)' as additional flags to the Fortran 77 compiler, since
# this is how GNU Make does it; see the `GNU Make Manual, Edition 0.51
# for `make' Version 3.76 Beta' (specifically, from info file
# `(make)Catalogue of Rules').
#
# A better approach would be to write an Autoconf test
# (i.e. AC_PROG_FPP) for a Fortran 77 preprocessor, because not all
# Fortran 77 compilers know how to do preprocessing. The Autoconf
# macro AC_PROG_FPP should test the Fortran 77 compiler first for
# preprocessing capabilities, and then fall back on cpp (if cpp were
# available).
register_language ('name' => 'ppf77',
'Name' => 'Preprocessed Fortran 77',
'config_vars' => ['F77'],
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'F77LD',
'ld' => '$(F77)',
'flags' => ['FFLAGS', 'CPPFLAGS'],
'compiler' => 'PPF77COMPILE',
'compile' => '$(F77) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_FFLAGS) $(FFLAGS)',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'pure' => 1,
'extensions' => ['.F']);
# Ratfor.
register_language ('name' => 'ratfor',
'Name' => 'Ratfor',
'config_vars' => ['F77'],
'linker' => 'F77LINK',
'link' => '$(F77LD) $(AM_FFLAGS) $(FFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'lder' => 'F77LD',
'ld' => '$(F77)',
'flags' => ['RFLAGS', 'FFLAGS'],
# FIXME also FFLAGS.
'compile' => '$(F77) $(AM_FFLAGS) $(FFLAGS) $(AM_RFLAGS) $(RFLAGS)',
'compiler' => 'RCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'F77',
'pure' => 1,
'extensions' => ['.r']);
# Java via gcj.
register_language ('name' => 'java',
'Name' => 'Java',
'config_vars' => ['GCJ'],
'linker' => 'GCJLINK',
'link' => '$(GCJLD) $(AM_GCJFLAGS) $(GCJFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@',
'autodep' => 'GCJ',
'flags' => ['GCJFLAGS'],
'compile' => '$(GCJ) $(AM_GCJFLAGS) $(GCJFLAGS)',
'compiler' => 'GCJCOMPILE',
'compile_flag' => '-c',
'output_flag' => '-o',
'libtool_tag' => 'GCJ',
'lder' => 'GCJLD',
'ld' => '$(GCJ)',
'pure' => 1,
'extensions' => ['.java', '.class', '.zip', '.jar']);
################################################################
# Error reporting functions.
# err_am ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about the current Makefile.am.
sub err_am ($;%)
{
msg_am ('error', @_);
}
# err_ac ($MESSAGE, [%OPTIONS])
# -----------------------------
# Uncategorized errors about configure.ac.
sub err_ac ($;%)
{
msg_ac ('error', @_);
}
# msg_am ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about the current Makefile.am.
sub msg_am ($$;%)
{
my ($channel, $msg, %opts) = @_;
msg $channel, "${am_file}.am", $msg, %opts;
}
# msg_ac ($CHANNEL, $MESSAGE, [%OPTIONS])
# ---------------------------------------
# Messages about about configure.ac.
sub msg_ac ($$;%)
{
my ($channel, $msg, %opts) = @_;
msg $channel, $configure_ac, $msg, %opts;
}
################################################################
# subst ($TEXT)
# -------------
# Return a configure-style substitution using the indicated text.
# We do this to avoid having the substitutions directly in automake.in;
# when we do that they are sometimes removed and this causes confusion
# and bugs.
sub subst ($)
{
my ($text) = @_;
return '@' . $text . '@';
}
################################################################
# $BACKPATH
# &backname ($REL-DIR)
# --------------------
# If I `cd $REL-DIR', then to come back, I should `cd $BACKPATH'.
# For instance `src/foo' => `../..'.
# Works with non strictly increasing paths, i.e., `src/../lib' => `..'.
sub backname ($)
{
my ($file) = @_;
my @res;
foreach (split (/\//, $file))
{
next if $_ eq '.' || $_ eq '';
if ($_ eq '..')
{
pop @res;
}
else
{
push (@res, '..');
}
}
return join ('/', @res) || '.';
}
################################################################
# Handle AUTOMAKE_OPTIONS variable. Return 1 on error, 0 otherwise.
sub handle_options
{
my $var = var ('AUTOMAKE_OPTIONS');
if ($var)
{
# FIXME: We should disallow conditional definitions of AUTOMAKE_OPTIONS.
if (process_option_list ($var->rdef (TRUE)->location,
$var->value_as_list_recursive (cond_filter =>
TRUE)))
{
return 1;
}
}
if ($strictness == GNITS)
{
set_option ('readme-alpha', INTERNAL);
set_option ('std-options', INTERNAL);
set_option ('check-news', INTERNAL);
}
return 0;
}
# shadow_unconditionally ($varname, $where)
# -----------------------------------------
# Return a $(variable) that contains all possible values
# $varname can take.
# If the VAR wasn't defined conditionally, return $(VAR).
# Otherwise we create a am__VAR_DIST variable which contains
# all possible values, and return $(am__VAR_DIST).
sub shadow_unconditionally ($$)
{
my ($varname, $where) = @_;
my $var = var $varname;
if ($var->has_conditional_contents)
{
$varname = "am__${varname}_DIST";
my @files = uniq ($var->value_as_list_recursive);
define_pretty_variable ($varname, TRUE, $where, @files);
}
return "\$($varname)"
}
# get_object_extension ($EXTENSION)
# ---------------------------------
# Prefix $EXTENSION with $U if ansi2knr is in use.
sub get_object_extension ($)
{
my ($extension) = @_;
# Check for automatic de-ANSI-fication.
$extension = '$U' . $extension
if option 'ansi2knr';
$get_object_extension_was_run = 1;
return $extension;
}
# Call finish function for each language that was used.
sub handle_languages
{
if (! option 'no-dependencies')
{
# Include auto-dep code. Don't include it if DEP_FILES would
# be empty.
if (&saw_sources_p (0) && keys %dep_files)
{
# Set location of depcomp.
&define_variable ('depcomp',
"\$(SHELL) $am_config_aux_dir/depcomp",
INTERNAL);
&define_variable ('am__depfiles_maybe', 'depfiles', INTERNAL);
require_conf_file ("$am_file.am", FOREIGN, 'depcomp');
my @deplist = sort keys %dep_files;
# Generate each `include' individually. Irix 6 make will
# not properly include several files resulting from a
# variable expansion; generating many separate includes
# seems safest.
$output_rules .= "\n";
foreach my $iter (@deplist)
{
$output_rules .= (subst ('AMDEP_TRUE')
. subst ('am__include')
. ' '
. subst ('am__quote')
. $iter
. subst ('am__quote')
. "\n");
}
# Compute the set of directories to remove in distclean-depend.
my @depdirs = uniq (map { dirname ($_) } @deplist);
$output_rules .= &file_contents ('depend',
new Automake::Location,
DEPDIRS => "@depdirs");
}
}
else
{
&define_variable ('depcomp', '', INTERNAL);
&define_variable ('am__depfiles_maybe', '', INTERNAL);
}
my %done;
# Is the c linker needed?
my $needs_c = 0;
foreach my $ext (sort keys %extension_seen)
{
next unless $extension_map{$ext};
my $lang = $languages{$extension_map{$ext}};
my $rule_file = $lang->rule_file || 'depend2';
# Get information on $LANG.
my $pfx = $lang->autodep;
my $fpfx = ($pfx eq '') ? 'CC' : $pfx;
my ($AMDEP, $FASTDEP) =
(option 'no-dependencies' || $lang->autodep eq 'no')
? ('FALSE', 'FALSE') : ('AMDEP', "am__fastdep$fpfx");
my %transform = ('EXT' => $ext,
'PFX' => $pfx,
'FPFX' => $fpfx,
'AMDEP' => $AMDEP,
'FASTDEP' => $FASTDEP,
'-c' => $lang->compile_flag || '',
'MORE-THAN-ONE'
=> (count_files_for_language ($lang->name) > 1));
# Generate the appropriate rules for this extension.
if (((! option 'no-dependencies') && $lang->autodep ne 'no')
|| defined $lang->compile)
{
# Some C compilers don't support -c -o. Use it only if really
# needed.
my $output_flag = $lang->output_flag || '';
$output_flag = '-o'
if (! $output_flag
&& $lang->name eq 'c'
&& option 'subdir-objects');
# Compute a possible derived extension.
# This is not used by depend2.am.
my $der_ext = (&{$lang->output_extensions} ($ext))[0];
# When we output an inference rule like `.c.o:' we
# have two cases to consider: either subdir-objects
# is used, or it is not.
#
# In the latter case the rule is used to build objects
# in the current directory, and dependencies always
# go into `./$(DEPDIR)/'. We can hard-code this value.
#
# In the former case the rule can be used to build
# objects in sub-directories too. Dependencies should
# go into the appropriate sub-directories, e.g.,
# `sub/$(DEPDIR)/'. The value of this directory
# need the be computed on-the-fly.
#
# DEPBASE holds the name of this directory, plus the
# basename part of the object file (extensions Po, TPo,
# Plo, TPlo will be added later as appropriate). It is
# either hardcoded, or a shell variable (`$depbase') that
# will be computed by the rule.
my $depbase =
option ('subdir-objects') ? '$$depbase' : '$(DEPDIR)/$*';
$output_rules .=
file_contents ($rule_file,
new Automake::Location,
%transform,
GENERIC => 1,
'DERIVED-EXT' => $der_ext,
DEPBASE => $depbase,
BASE => '$*',
SOURCE => '$<',
OBJ => '$@',
OBJOBJ => '$@',
LTOBJ => '$@',
COMPILE => '$(' . $lang->compiler . ')',
LTCOMPILE => '$(LT' . $lang->compiler . ')',
-o => $output_flag,
SUBDIROBJ => !! option 'subdir-objects');
}
# Now include code for each specially handled object with this
# language.
my %seen_files = ();
foreach my $file (@{$lang_specific_files{$lang->name}})
{
my ($derived, $source, $obj, $myext, %file_transform) = @$file;
# We might see a given object twice, for instance if it is
# used under different conditions.
next if defined $seen_files{$obj};
$seen_files{$obj} = 1;
prog_error ("found " . $lang->name .
" in handle_languages, but compiler not defined")
unless defined $lang->compile;
my $obj_compile = $lang->compile;
# Rewrite each occurrence of `AM_$flag' in the compile
# rule into `${derived}_$flag' if it exists.
for my $flag (@{$lang->flags})
{
my $val = "${derived}_$flag";
$obj_compile =~ s/\(AM_$flag\)/\($val\)/
if set_seen ($val);
}
my $libtool_tag = '';
if ($lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag})
{
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
}
my $obj_ltcompile =
"\$(LIBTOOL) $libtool_tag--mode=compile $obj_compile";
# We _need_ `-o' for per object rules.
my $output_flag = $lang->output_flag || '-o';
my $depbase = dirname ($obj);
$depbase = ''
if $depbase eq '.';
$depbase .= '/'
unless $depbase eq '';
$depbase .= '$(DEPDIR)/' . basename ($obj);
# Support for deansified files in subdirectories is ugly
# enough to deserve an explanation.
#
# A Note about normal ansi2knr processing first. On
#
# AUTOMAKE_OPTIONS = ansi2knr
# bin_PROGRAMS = foo
# foo_SOURCES = foo.c
#
# we generate rules similar to:
#
# foo: foo$U.o; link ...
# foo$U.o: foo$U.c; compile ...
# foo_.c: foo.c; ansi2knr ...
#
# this is fairly compact, and will call ansi2knr depending
# on the value of $U (`' or `_').
#
# It's harder with subdir sources. On
#
# AUTOMAKE_OPTIONS = ansi2knr
# bin_PROGRAMS = foo
# foo_SOURCES = sub/foo.c
#
# we have to create foo_.c in the current directory.
# (Unless the user asks 'subdir-objects'.) This is important
# in case the same file (`foo.c') is compiled from other
# directories with different cpp options: foo_.c would
# be preprocessed for only one set of options if it were
# put in the subdirectory.
#
# Because foo$U.o must be built from either foo_.c or
# sub/foo.c we can't be as concise as in the first example.
# Instead we output
#
# foo: foo$U.o; link ...
# foo_.o: foo_.c; compile ...
# foo.o: sub/foo.c; compile ...
# foo_.c: foo.c; ansi2knr ...
#
# This is why we'll now transform $rule_file twice
# if we detect this case.
# A first time we output the compile rule with `$U'
# replaced by `_' and the source directory removed,
# and another time we simply remove `$U'.
#
# Note that at this point $source (as computed by
# &handle_single_transform) is `sub/foo$U.c'.
# This can be confusing: it can be used as-is when
# subdir-objects is set, otherwise you have to know
# it really means `foo_.c' or `sub/foo.c'.
my $objdir = dirname ($obj);
my $srcdir = dirname ($source);
if ($lang->ansi && $obj =~ /\$U/)
{
prog_error "`$obj' contains \$U, but `$source' doesn't."
if $source !~ /\$U/;
(my $source_ = $source) =~ s/\$U/_/g;
# Output an additional rule if _.c and .c are not in
# the same directory. (_.c is always in $objdir.)
if ($objdir ne $srcdir)
{
(my $obj_ = $obj) =~ s/\$U/_/g;
(my $depbase_ = $depbase) =~ s/\$U/_/g;
$source_ = basename ($source_);
$output_rules .=
file_contents ($rule_file,
new Automake::Location,
%transform,
GENERIC => 0,
DEPBASE => $depbase_,
BASE => $obj_,
SOURCE => $source_,
OBJ => "$obj_$myext",
OBJOBJ => "$obj_.obj",
LTOBJ => "$obj_.lo",
COMPILE => $obj_compile,
LTCOMPILE => $obj_ltcompile,
-o => $output_flag,
%file_transform);
$obj =~ s/\$U//g;
$depbase =~ s/\$U//g;
$source =~ s/\$U//g;
}
}
$output_rules .=
file_contents ($rule_file,
new Automake::Location,
%transform,
GENERIC => 0,
DEPBASE => $depbase,
BASE => $obj,
SOURCE => $source,
# Use $myext and not `.o' here, in case
# we are actually building a new source
# file -- e.g. via yacc.
OBJ => "$obj$myext",
OBJOBJ => "$obj.obj",
LTOBJ => "$obj.lo",
COMPILE => $obj_compile,
LTCOMPILE => $obj_ltcompile,
-o => $output_flag,
%file_transform);
}
# The rest of the loop is done once per language.
next if defined $done{$lang};
$done{$lang} = 1;
# Load the language dependent Makefile chunks.
my %lang = map { uc ($_) => 0 } keys %languages;
$lang{uc ($lang->name)} = 1;
$output_rules .= file_contents ('lang-compile',
new Automake::Location,
%transform, %lang);
# If the source to a program consists entirely of code from a
# `pure' language, for instance C++ for Fortran 77, then we
# don't need the C compiler code. However if we run into
# something unusual then we do generate the C code. There are
# probably corner cases here that do not work properly.
# People linking Java code to Fortran code deserve pain.
$needs_c ||= ! $lang->pure;
define_compiler_variable ($lang)
if ($lang->compile);
define_linker_variable ($lang)
if ($lang->link);
require_variables ("$am_file.am", $lang->Name . " source seen",
TRUE, @{$lang->config_vars});
# Call the finisher.
$lang->finish;
# Flags listed in `->flags' are user variables (per GNU Standards),
# they should not be overridden in the Makefile...
my @dont_override = @{$lang->flags};
# ... and so is LDFLAGS.
push @dont_override, 'LDFLAGS' if $lang->link;
foreach my $flag (@dont_override)
{
my $var = var $flag;
if ($var)
{
for my $cond ($var->conditions->conds)
{
if ($var->rdef ($cond)->owner == VAR_MAKEFILE)
{
msg_cond_var ('gnu', $cond, $flag,
"`$flag' is a user variable, "
. "you should not override it;\n"
. "use `AM_$flag' instead.");
}
}
}
}
}
# If the project is entirely C++ or entirely Fortran 77 (i.e., 1
# suffix rule was learned), don't bother with the C stuff. But if
# anything else creeps in, then use it.
$needs_c = 1
if $need_link || suffix_rules_count > 1;
if ($needs_c)
{
&define_compiler_variable ($languages{'c'})
unless defined $done{$languages{'c'}};
define_linker_variable ($languages{'c'});
}
}
# Check to make sure a source defined in LIBOBJS is not explicitly
# mentioned. This is a separate function (as opposed to being inlined
# in handle_source_transform) because it isn't always appropriate to
# do this check.
sub check_libobjs_sources
{
my ($one_file, $unxformed) = @_;
foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
'dist_EXTRA_', 'nodist_EXTRA_')
{
my @files;
my $varname = $prefix . $one_file . '_SOURCES';
my $var = var ($varname);
if ($var)
{
@files = $var->value_as_list_recursive;
}
elsif ($prefix eq '')
{
@files = ($unxformed . '.c');
}
else
{
next;
}
foreach my $file (@files)
{
err_var ($prefix . $one_file . '_SOURCES',
"automatically discovered file `$file' should not" .
" be explicitly mentioned")
if defined $libsources{$file};
}
}
}
# @OBJECTS
# handle_single_transform ($VAR, $TOPPARENT, $DERIVED, $OBJ, $FILE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Does much of the actual work for handle_source_transform.
# Arguments are:
# $VAR is the name of the variable that the source filenames come from
# $TOPPARENT is the name of the _SOURCES variable which is being processed
# $DERIVED is the name of resulting executable or library
# $OBJ is the object extension (e.g., `$U.lo')
# $FILE the source file to transform
# %TRANSFORM contains extras arguments to pass to file_contents
# when producing explicit rules
# Result is a list of the names of objects
# %linkers_used will be updated with any linkers needed
sub handle_single_transform ($$$$$%)
{
my ($var, $topparent, $derived, $obj, $_file, %transform) = @_;
my @files = ($_file);
my @result = ();
my $nonansi_obj = $obj;
$nonansi_obj =~ s/\$U//g;
# Turn sources into objects. We use a while loop like this
# because we might add to @files in the loop.
while (scalar @files > 0)
{
$_ = shift @files;
# Configure substitutions in _SOURCES variables are errors.
if (/^\@.*\@$/)
{
my $parent_msg = '';
$parent_msg = "\nand is referred to from `$topparent'"
if $topparent ne $var->name;
err_var ($var,
"`" . $var->name . "' includes configure substitution `$_'"
. $parent_msg . ";\nconfigure " .
"substitutions are not allowed in _SOURCES variables");
next;
}
# If the source file is in a subdirectory then the `.o' is put
# into the current directory, unless the subdir-objects option
# is in effect.
# Split file name into base and extension.
next if ! /^(?:(.*)\/)?([^\/]*)($KNOWN_EXTENSIONS_PATTERN)$/;
my $full = $_;
my $directory = $1 || '';
my $base = $2;
my $extension = $3;
# We must generate a rule for the object if it requires its own flags.
my $renamed = 0;
my ($linker, $object);
# This records whether we've seen a derived source file (e.g.
# yacc output).
my $derived_source = 0;
# This holds the `aggregate context' of the file we are
# currently examining. If the file is compiled with
# per-object flags, then it will be the name of the object.
# Otherwise it will be `AM'. This is used by the target hook
# language function.
my $aggregate = 'AM';
$extension = &derive_suffix ($extension, $nonansi_obj);
my $lang;
if ($extension_map{$extension} &&
($lang = $languages{$extension_map{$extension}}))
{
# Found the language, so see what it says.
&saw_extension ($extension);
# Note: computed subr call. The language rewrite function
# should return one of the LANG_* constants. It could
# also return a list whose first value is such a constant
# and whose second value is a new source extension which
# should be applied. This means this particular language
# generates another source file which we must then process
# further.
my $subr = \&{'lang_' . $lang->name . '_rewrite'};
my ($r, $source_extension)
= &$subr ($directory, $base, $extension);
# Skip this entry if we were asked not to process it.
next if $r == LANG_IGNORE;
# Now extract linker and other info.
$linker = $lang->linker;
my $this_obj_ext;
if (defined $source_extension)
{
$this_obj_ext = $source_extension;
$derived_source = 1;
}
elsif ($lang->ansi)
{
$this_obj_ext = $obj;
}
else
{
$this_obj_ext = $nonansi_obj;
}
$object = $base . $this_obj_ext;
# Do we have per-executable flags for this executable?
my $have_per_exec_flags = 0;
foreach my $flag (@{$lang->flags})
{
if (set_seen ("${derived}_$flag"))
{
$have_per_exec_flags = 1;
last;
}
}
if ($have_per_exec_flags)
{
# We have a per-executable flag in effect for this
# object. In this case we rewrite the object's
# name to ensure it is unique. We also require
# the `compile' program to deal with compilers
# where `-c -o' does not work.
# We choose the name `DERIVED_OBJECT' to ensure
# (1) uniqueness, and (2) continuity between
# invocations. However, this will result in a
# name that is too long for losing systems, in
# some situations. So we provide _SHORTNAME to
# override.
my $dname = $derived;
my $var = var ($derived . '_SHORTNAME');
if ($var)
{
# FIXME: should use the same Condition as
# the _SOURCES variable. But this is really
# silly overkill -- nobody should have
# conditional shortnames.
$dname = $var->variable_value;
}
$object = $dname . '-' . $object;
require_conf_file ("$am_file.am", FOREIGN, 'compile')
if $lang->name eq 'c';
prog_error ($lang->name . " flags defined without compiler")
if ! defined $lang->compile;
$renamed = 1;
}
# If rewrite said it was ok, put the object into a
# subdir.
if ($r == LANG_SUBDIR && $directory ne '')
{
$object = $directory . '/' . $object;
}
# If the object file has been renamed (because per-target
# flags are used) we cannot compile the file with an
# inference rule: we need an explicit rule.
#
# If the source is in a subdirectory and the object is in
# the current directory, we also need an explicit rule.
#
# If both source and object files are in a subdirectory
# (this happens when the subdir-objects option is used),
# then the inference will work.
#
# The latter case deserves a historical note. When the
# subdir-objects option was added on 1999-04-11 it was
# thought that inferences rules would work for
# subdirectory objects too. Later, on 1999-11-22,
# automake was changed to output explicit rules even for
# subdir-objects. Nobody remembers why, but this occured
# soon after the merge of the user-dep-gen-branch so it
# might be related. In late 2003 people complained about
# the size of the generated Makefile.ins (libgcj, with
# 2200+ subdir objects was reported to have a 9MB
# Makefile), so we now rely on inference rules again.
# Maybe we'll run across the same issue as in the past,
# but at least this time we can document it. However since
# dependency tracking has evolved it is possible that
# our old problem no longer exists.
# Using inference rules for subdir-objects has been tested
# with GNU make, Solaris make, Ultrix make, BSD make,
# HP-UX make, and OSF1 make successfully.
if ($renamed ||
($directory ne '' && ! option 'subdir-objects'))
{
my $obj_sans_ext = substr ($object, 0,
- length ($this_obj_ext));
my $full_ansi = $full;
if ($lang->ansi && option 'ansi2knr')
{
$full_ansi =~ s/$KNOWN_EXTENSIONS_PATTERN$/\$U$&/;
$obj_sans_ext .= '$U';
}
my @specifics = ($full_ansi, $obj_sans_ext,
# Only use $this_obj_ext in the derived
# source case because in the other case we
# *don't* want $(OBJEXT) to appear here.
($derived_source ? $this_obj_ext : '.o'));
# If we renamed the object then we want to use the
# per-executable flag name. But if this is simply a
# subdir build then we still want to use the AM_ flag
# name.
if ($renamed)
{
unshift @specifics, $derived;
$aggregate = $derived;
}
else
{
unshift @specifics, 'AM';
}
# Each item on this list is a reference to a list consisting
# of four values followed by additional transform flags for
# file_contents. The four values are the derived flag prefix
# (e.g. for `foo_CFLAGS', it is `foo'), the name of the
# source file, the base name of the output file, and
# the extension for the object file.
push (@{$lang_specific_files{$lang->name}},
[@specifics, %transform]);
}
}
elsif ($extension eq $nonansi_obj)
{
# This is probably the result of a direct suffix rule.
# In this case we just accept the rewrite.
$object = "$base$extension";
$linker = '';
}
else
{
# No error message here. Used to have one, but it was
# very unpopular.
# FIXME: we could potentially do more processing here,
# perhaps treating the new extension as though it were a
# new source extension (as above). This would require
# more restructuring than is appropriate right now.
next;
}
err_am "object `$object' created by `$full' and `$object_map{$object}'"
if (defined $object_map{$object}
&& $object_map{$object} ne $full);
my $comp_val = (($object =~ /\.lo$/)
? COMPILE_LIBTOOL : COMPILE_ORDINARY);
(my $comp_obj = $object) =~ s/\.lo$/.\$(OBJEXT)/;
if (defined $object_compilation_map{$comp_obj}
&& $object_compilation_map{$comp_obj} != 0
# Only see the error once.
&& ($object_compilation_map{$comp_obj}
!= (COMPILE_LIBTOOL | COMPILE_ORDINARY))
&& $object_compilation_map{$comp_obj} != $comp_val)
{
err_am "object `$comp_obj' created both with libtool and without";
}
$object_compilation_map{$comp_obj} |= $comp_val;
if (defined $lang)
{
# Let the language do some special magic if required.
$lang->target_hook ($aggregate, $object, $full, %transform);
}
if ($derived_source)
{
prog_error ($lang->name . " has automatic dependency tracking")
if $lang->autodep ne 'no';
# Make sure this new source file is handled next. That will
# make it appear to be at the right place in the list.
unshift (@files, $object);
# Distribute derived sources unless the source they are
# derived from is not.
&push_dist_common ($object)
unless ($topparent =~ /^(?:nobase_)?nodist_/);
next;
}
$linkers_used{$linker} = 1;
push (@result, $object);
if (! defined $object_map{$object})
{
my @dep_list = ();
$object_map{$object} = $full;
# If resulting object is in subdir, we need to make
# sure the subdir exists at build time.
if ($object =~ /\//)
{
# FIXME: check that $DIRECTORY is somewhere in the
# project
# For Java, the way we're handling it right now, a
# `..' component doesn't make sense.
if ($lang->name eq 'java' && $object =~ /(\/|^)\.\.\//)
{
err_am "`$full' should not contain a `..' component";
}
# Make sure object is removed by `make mostlyclean'.
$compile_clean_files{$object} = MOSTLY_CLEAN;
# If we have a libtool object then we also must remove
# the ordinary .o.
if ($object =~ /\.lo$/)
{
(my $xobj = $object) =~ s,lo$,\$(OBJEXT),;
$compile_clean_files{$xobj} = MOSTLY_CLEAN;
# Remove any libtool object in this directory.
$libtool_clean_directories{$directory} = 1;
}
push (@dep_list, require_build_directory ($directory));
# If we're generating dependencies, we also want
# to make sure that the appropriate subdir of the
# .deps directory is created.
push (@dep_list,
require_build_directory ($directory . '/$(DEPDIR)'))
unless option 'no-dependencies';
}
&pretty_print_rule ($object . ':', "\t", @dep_list)
if scalar @dep_list > 0;
}
# Transform .o or $o file into .P file (for automatic
# dependency code).
if ($lang && $lang->autodep ne 'no')
{
my $depfile = $object;
$depfile =~ s/\.([^.]*)$/.P$1/;
$depfile =~ s/\$\(OBJEXT\)$/o/;
$dep_files{dirname ($depfile) . '/$(DEPDIR)/'
. basename ($depfile)} = 1;
}
}
return @result;
}
# $LINKER
# define_objects_from_sources ($VAR, $OBJVAR, $NODEFINE, $ONE_FILE,
# $OBJ, $PARENT, $TOPPARENT, $WHERE, %TRANSFORM)
# ---------------------------------------------------------------------------
# Define an _OBJECTS variable for a _SOURCES variable (or subvariable)
#
# Arguments are:
# $VAR is the name of the _SOURCES variable
# $OBJVAR is the name of the _OBJECTS variable if known (otherwise
# it will be generated and returned).
# $NODEFINE is a boolean: if true, $OBJVAR will not be defined (but
# work done to determine the linker will be).
# $ONE_FILE is the canonical (transformed) name of object to build
# $OBJ is the object extension (i.e. either `.o' or `.lo').
# $TOPPARENT is the _SOURCES variable being processed.
# $WHERE context into which this definition is done
# %TRANSFORM extra arguments to pass to file_contents when producing
# rules
#
# Result is a pair ($LINKER, $OBJVAR):
# $LINKER is a boolean, true if a linker is needed to deal with the objects
sub define_objects_from_sources ($$$$$$$%)
{
my ($var, $objvar, $nodefine, $one_file,
$obj, $topparent, $where, %transform) = @_;
my $needlinker = "";
transform_variable_recursively
($var, $objvar, 'am__objects', $nodefine, $where,
# The transform code to run on each filename.
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
my @trans = handle_single_transform ($subvar, $topparent,
$one_file, $obj, $val,
%transform);
$needlinker = "true" if @trans;
return @trans;
});
return $needlinker;
}
# handle_source_transform ($CANON_TARGET, $TARGET, $OBJEXT, $WHERE, %TRANSFORM)
# -----------------------------------------------------------------------------
# Handle SOURCE->OBJECT transform for one program or library.
# Arguments are:
# canonical (transformed) name of target to build
# actual target of object to build
# object extension (i.e. either `.o' or `$o'.
# location of the source variable
# extra arguments to pass to file_contents when producing rules
# Return result is name of linker variable that must be used.
# Empty return means just use `LINK'.
sub handle_source_transform ($$$$%)
{
# one_file is canonical name. unxformed is given name. obj is
# object extension.
my ($one_file, $unxformed, $obj, $where, %transform) = @_;
my ($linker) = '';
# No point in continuing if _OBJECTS is defined.
return if reject_var ($one_file . '_OBJECTS',
$one_file . '_OBJECTS should not be defined');
my %used_pfx = ();
my $needlinker;
%linkers_used = ();
foreach my $prefix ('', 'EXTRA_', 'dist_', 'nodist_',
'dist_EXTRA_', 'nodist_EXTRA_')
{
my $varname = $prefix . $one_file . "_SOURCES";
my $var = var $varname;
next unless $var;
# We are going to define _OBJECTS variables using the prefix.
# Then we glom them all together. So we can't use the null
# prefix here as we need it later.
my $xpfx = ($prefix eq '') ? 'am_' : $prefix;
# Keep track of which prefixes we saw.
$used_pfx{$xpfx} = 1
unless $prefix =~ /EXTRA_/;
push @sources, "\$($varname)";
push @dist_sources, shadow_unconditionally ($varname, $where)
unless (option ('no-dist') || $prefix =~ /^nodist_/);
$needlinker |=
define_objects_from_sources ($varname,
$xpfx . $one_file . '_OBJECTS',
$prefix =~ /EXTRA_/,
$one_file, $obj, $varname, $where,
DIST_SOURCE => ($prefix !~ /^nodist_/),
%transform);
}
if ($needlinker)
{
$linker ||= &resolve_linker (%linkers_used);
}
my @keys = sort keys %used_pfx;
if (scalar @keys == 0)
{
# The default source for libfoo.la is libfoo.c, but for
# backward compatibility we first look at libfoo_la.c
my $old_default_source = "$one_file.c";
(my $default_source = $unxformed) =~ s,(\.[^./\\]*)?$,.c,;
if ($old_default_source ne $default_source
&& (rule $old_default_source
|| rule '$(srcdir)/' . $old_default_source
|| rule '${srcdir}/' . $old_default_source
|| -f $old_default_source))
{
my $loc = $where->clone;
$loc->pop_context;
msg ('obsolete', $loc,
"the default source for `$unxformed' has been changed "
. "to `$default_source'.\n(Using `$old_default_source' for "
. "backward compatibility.)");
$default_source = $old_default_source;
}
# If a rule exists to build this source with a $(srcdir)
# prefix, use that prefix in our variables too. This is for
# the sake of BSD Make.
if (rule '$(srcdir)/' . $default_source
|| rule '${srcdir}/' . $default_source)
{
$default_source = '$(srcdir)/' . $default_source;
}
&define_variable ($one_file . "_SOURCES", $default_source, $where);
push (@sources, $default_source);
push (@dist_sources, $default_source);
%linkers_used = ();
my (@result) =
handle_single_transform ($one_file . '_SOURCES',
$one_file . '_SOURCES',
$one_file, $obj,
$default_source, %transform);
$linker ||= &resolve_linker (%linkers_used);
define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @result);
}
else
{
@keys = map { '$(' . $_ . $one_file . '_OBJECTS)' } @keys;
define_pretty_variable ($one_file . '_OBJECTS', TRUE, $where, @keys);
}
# If we want to use `LINK' we must make sure it is defined.
if ($linker eq '')
{
$need_link = 1;
}
return $linker;
}
# handle_lib_objects ($XNAME, $VAR)
# ---------------------------------
# Special-case ALLOCA and LIBOBJS substitutions in _LDADD or _LIBADD variables.
# Also, generate _DEPENDENCIES variable if appropriate.
# Arguments are:
# transformed name of object being built, or empty string if no object
# name of _LDADD/_LIBADD-type variable to examine
# Returns 1 if LIBOBJS seen, 0 otherwise.
sub handle_lib_objects
{
my ($xname, $varname) = @_;
my $var = var ($varname);
prog_error "handle_lib_objects: `$varname' undefined"
unless $var;
prog_error "handle_lib_objects: unexpected variable name `$varname'"
unless $varname =~ /^(.*)(?:LIB|LD)ADD$/;
my $prefix = $1 || 'AM_';
my $seen_libobjs = 0;
my $flagvar = 0;
transform_variable_recursively
($varname, $xname . '_DEPENDENCIES', 'am__DEPENDENCIES',
! $xname, INTERNAL,
# Transformation function, run on each filename.
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
if ($val =~ /^-/)
{
# Skip -lfoo and -Ldir silently; these are explicitly allowed.
if ($val !~ /^-[lL]/ &&
# Skip -dlopen and -dlpreopen; these are explicitly allowed
# for Libtool libraries or programs. (Actually we are a bit
# laxest here since this code also applies to non-libtool
# libraries or programs, for which -dlopen and -dlopreopen
# are pure non-sence. Diagnosting this doesn't seems very
# important: the developer will quickly get complaints from
# the linker.)
$val !~ /^-dl(?:pre)?open$/ &&
# Only get this error once.
! $flagvar)
{
$flagvar = 1;
# FIXME: should display a stack of nested variables
# as context when $var != $subvar.
err_var ($var, "linker flags such as `$val' belong in "
. "`${prefix}LDFLAGS");
}
return ();
}
elsif ($val !~ /^\@.*\@$/)
{
# Assume we have a file of some sort, and output it into the
# dependency variable. Autoconf substitutions are not output;
# rarely is a new dependency substituted into e.g. foo_LDADD
# -- but bad things (e.g. -lX11) are routinely substituted.
# Note that LIBOBJS and ALLOCA are exceptions to this rule,
# and handled specially below.
return $val;
}
elsif ($val =~ /^\@(LT)?LIBOBJS\@$/)
{
handle_LIBOBJS ($subvar, $cond, $1);
$seen_libobjs = 1;
return $val;
}
elsif ($val =~ /^\@(LT)?ALLOCA\@$/)
{
handle_ALLOCA ($subvar, $cond, $1);
return $val;
}
else
{
return ();
}
});
return $seen_libobjs;
}
sub handle_LIBOBJS ($$$)
{
my ($var, $cond, $lt) = @_;
$lt ||= '';
my $myobjext = ($1 ? 'l' : '') . 'o';
$var->requires_variables ("\@${lt}LIBOBJS\@ used", $lt . 'LIBOBJS')
if ! keys %libsources;
foreach my $iter (keys %libsources)
{
if ($iter =~ /\.[cly]$/)
{
&saw_extension ($&);
&saw_extension ('.c');
}
if ($iter =~ /\.h$/)
{
require_file_with_macro ($cond, $var, FOREIGN, $iter);
}
elsif ($iter ne 'alloca.c')
{
my $rewrite = $iter;
$rewrite =~ s/\.c$/.P$myobjext/;
$dep_files{'$(DEPDIR)/' . $rewrite} = 1;
$rewrite = "^" . quotemeta ($iter) . "\$";
# Only require the file if it is not a built source.
my $bs = var ('BUILT_SOURCES');
if (! $bs || ! grep (/$rewrite/, $bs->value_as_list_recursive))
{
require_file_with_macro ($cond, $var, FOREIGN, $iter);
}
}
}
}
sub handle_ALLOCA ($$$)
{
my ($var, $cond, $lt) = @_;
my $myobjext = ($lt ? 'l' : '') . 'o';
$lt ||= '';
$var->requires_variables ("\@${lt}ALLOCA\@ used", $lt . 'ALLOCA');
$dep_files{'$(DEPDIR)/alloca.P' . $myobjext} = 1;
require_file_with_macro ($cond, $var, FOREIGN, 'alloca.c');
&saw_extension ('c');
}
# Canonicalize the input parameter
sub canonicalize
{
my ($string) = @_;
$string =~ tr/A-Za-z0-9_\@/_/c;
return $string;
}
# Canonicalize a name, and check to make sure the non-canonical name
# is never used. Returns canonical name. Arguments are name and a
# list of suffixes to check for.
sub check_canonical_spelling
{
my ($name, @suffixes) = @_;
my $xname = &canonicalize ($name);
if ($xname ne $name)
{
foreach my $xt (@suffixes)
{
reject_var ("$name$xt", "use `$xname$xt', not `$name$xt'");
}
}
return $xname;
}
# handle_compile ()
# -----------------
# Set up the compile suite.
sub handle_compile ()
{
return
unless $get_object_extension_was_run;
# Boilerplate.
my $default_includes = '';
if (! option 'nostdinc')
{
$default_includes = ' -I. -I$(srcdir)';
my $var = var 'CONFIG_HEADER';
if ($var)
{
foreach my $hdr (split (' ', $var->variable_value))
{
$default_includes .= ' -I' . dirname ($hdr);
}
}
}
my (@mostly_rms, @dist_rms);
foreach my $item (sort keys %compile_clean_files)
{
if ($compile_clean_files{$item} == MOSTLY_CLEAN)
{
push (@mostly_rms, "\t-rm -f $item");
}
elsif ($compile_clean_files{$item} == DIST_CLEAN)
{
push (@dist_rms, "\t-rm -f $item");
}
else
{
prog_error 'invalid entry in %compile_clean_files';
}
}
my ($coms, $vars, $rules) =
&file_contents_internal (1, "$libdir/am/compile.am",
new Automake::Location,
('DEFAULT_INCLUDES' => $default_includes,
'MOSTLYRMS' => join ("\n", @mostly_rms),
'DISTRMS' => join ("\n", @dist_rms)));
$output_vars .= $vars;
$output_rules .= "$coms$rules";
# Check for automatic de-ANSI-fication.
if (option 'ansi2knr')
{
my ($ansi2knr_filename, $ansi2knr_where) = @{option 'ansi2knr'};
my $ansi2knr_dir = '';
require_variables ($ansi2knr_where, "option `ansi2knr' is used",
TRUE, "ANSI2KNR", "U");
# topdir is where ansi2knr should be.
if ($ansi2knr_filename eq 'ansi2knr')
{
# Only require ansi2knr files if they should appear in
# this directory.
require_file ($ansi2knr_where, FOREIGN,
'ansi2knr.c', 'ansi2knr.1');
# ansi2knr needs to be built before subdirs, so unshift it.
unshift (@all, '$(ANSI2KNR)');
}
else
{
$ansi2knr_dir = dirname ($ansi2knr_filename);
}
$output_rules .= &file_contents ('ansi2knr',
new Automake::Location,
'ANSI2KNR-DIR' => $ansi2knr_dir);
}
}
# handle_libtool ()
# -----------------
# Handle libtool rules.
sub handle_libtool
{
return unless var ('LIBTOOL');
# Libtool requires some files, but only at top level.
require_conf_file_with_macro (TRUE, 'LIBTOOL', FOREIGN, @libtool_files)
if $relative_dir eq '.';
my @libtool_rms;
foreach my $item (sort keys %libtool_clean_directories)
{
my $dir = ($item eq '.') ? '' : "$item/";
# .libs is for Unix, _libs for DOS.
push (@libtool_rms, "\t-rm -rf ${dir}.libs ${dir}_libs");
}
# Output the libtool compilation rules.
$output_rules .= &file_contents ('libtool',
new Automake::Location,
LTRMS => join ("\n", @libtool_rms));
}
# handle_programs ()
# ------------------
# Handle C programs.
sub handle_programs
{
my @proglist = &am_install_var ('progs', 'PROGRAMS',
'bin', 'sbin', 'libexec', 'pkglib',
'noinst', 'check');
return if ! @proglist;
my $seen_global_libobjs =
var ('LDADD') && &handle_lib_objects ('', 'LDADD');
foreach my $pair (@proglist)
{
my ($where, $one_file) = @$pair;
my $seen_libobjs = 0;
my $obj = get_object_extension '.$(OBJEXT)';
# Strip any $(EXEEXT) suffix the user might have added, or this
# will confuse &handle_source_transform and &check_canonical_spelling.
# We'll add $(EXEEXT) back later anyway.
$one_file =~ s/\$\(EXEEXT\)$//;
# Canonicalize names and check for misspellings.
my $xname = &check_canonical_spelling ($one_file, '_LDADD', '_LDFLAGS',
'_SOURCES', '_OBJECTS',
'_DEPENDENCIES');
$where->push_context ("while processing program `$one_file'");
$where->set (INTERNAL->get);
my $linker = &handle_source_transform ($xname, $one_file, $obj, $where,
NONLIBTOOL => 1, LIBTOOL => 0);
if (var ($xname . "_LDADD"))
{
$seen_libobjs = &handle_lib_objects ($xname, $xname . '_LDADD');
}
else
{
# User didn't define prog_LDADD override. So do it.
&define_variable ($xname . '_LDADD', '$(LDADD)', $where);
# This does a bit too much work. But we need it to
# generate _DEPENDENCIES when appropriate.
if (var ('LDADD'))
{
$seen_libobjs = &handle_lib_objects ($xname, 'LDADD');
}
}
reject_var ($xname . '_LIBADD',
"use `${xname}_LDADD', not `${xname}_LIBADD'");
set_seen ($xname . '_DEPENDENCIES');
set_seen ($xname . '_LDFLAGS');
# Determine program to use for link.
my $xlink;
if (var ($xname . '_LINK'))
{
$xlink = $xname . '_LINK';
}
else
{
$xlink = $linker ? $linker : 'LINK';
}
# If the resulting program lies into a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($one_file);
$output_rules .= &file_contents ('program',
$where,
PROGRAM => $one_file,
XPROGRAM => $xname,
XLINK => $xlink,
DIRSTAMP => $dirstamp,
EXEEXT => '$(EXEEXT)');
if ($seen_libobjs || $seen_global_libobjs)
{
if (var ($xname . '_LDADD'))
{
&check_libobjs_sources ($xname, $xname . '_LDADD');
}
elsif (var ('LDADD'))
{
&check_libobjs_sources ($xname, 'LDADD');
}
}
}
}
# handle_libraries ()
# -------------------
# Handle libraries.
sub handle_libraries
{
my @liblist = &am_install_var ('libs', 'LIBRARIES',
'lib', 'pkglib', 'noinst', 'check');
return if ! @liblist;
my @prefix = am_primary_prefixes ('LIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
if (@prefix)
{
my $var = rvar ($prefix[0] . '_LIBRARIES');
$var->requires_variables ('library used', 'RANLIB');
}
&define_variable ('AR', 'ar', INTERNAL);
&define_variable ('ARFLAGS', 'cru', INTERNAL);
foreach my $pair (@liblist)
{
my ($where, $onelib) = @$pair;
my $seen_libobjs = 0;
# Check that the library fits the standard naming convention.
my $bn = basename ($onelib);
if ($bn !~ /^lib.*\.a$/)
{
$bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.a/;
my $suggestion = dirname ($onelib) . "/$bn";
$suggestion =~ s|^\./||g;
msg ('error-gnu/warn', $where,
"`$onelib' is not a standard library name\n"
. "did you mean `$suggestion'?")
}
$where->push_context ("while processing library `$onelib'");
$where->set (INTERNAL->get);
my $obj = get_object_extension '.$(OBJEXT)';
# Canonicalize names and check for misspellings.
my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_SOURCES',
'_OBJECTS', '_DEPENDENCIES',
'_AR');
if (! var ($xlib . '_AR'))
{
&define_variable ($xlib . '_AR', '$(AR) $(ARFLAGS)', $where);
}
# Generate support for conditional object inclusion in
# libraries.
if (var ($xlib . '_LIBADD'))
{
if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
{
$seen_libobjs = 1;
}
}
else
{
&define_variable ($xlib . "_LIBADD", '', $where);
}
reject_var ($xlib . '_LDADD',
"use `${xlib}_LIBADD', not `${xlib}_LDADD'");
# Make sure we at look at this.
set_seen ($xlib . '_DEPENDENCIES');
&handle_source_transform ($xlib, $onelib, $obj, $where,
NONLIBTOOL => 1, LIBTOOL => 0);
# If the resulting library lies into a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($onelib);
$output_rules .= &file_contents ('library',
$where,
LIBRARY => $onelib,
XLIBRARY => $xlib,
DIRSTAMP => $dirstamp);
if ($seen_libobjs)
{
if (var ($xlib . '_LIBADD'))
{
&check_libobjs_sources ($xlib, $xlib . '_LIBADD');
}
}
}
}
# handle_ltlibraries ()
# ---------------------
# Handle shared libraries.
sub handle_ltlibraries
{
my @liblist = &am_install_var ('ltlib', 'LTLIBRARIES',
'noinst', 'lib', 'pkglib', 'check');
return if ! @liblist;
my @prefix = am_primary_prefixes ('LTLIBRARIES', 0, 'lib', 'pkglib',
'noinst', 'check');
if (@prefix)
{
my $var = rvar ($prefix[0] . '_LTLIBRARIES');
$var->requires_variables ('Libtool library used', 'LIBTOOL');
}
my %instdirs = ();
my %instconds = ();
my %liblocations = (); # Location (in Makefile.am) of each library.
foreach my $key (@prefix)
{
# Get the installation directory of each library.
(my $dir = $key) =~ s/^nobase_//;
my $var = rvar ($key . '_LTLIBRARIES');
# We reject libraries which are installed in several places
# in the same condition, because we can only specify one
# `-rpath' option.
$var->traverse_recursively
(sub
{
my ($var, $val, $cond, $full_cond) = @_;
my $hcond = $full_cond->human;
my $where = $var->rdef ($cond)->location;
# A library cannot be installed in different directory
# in overlapping conditions.
if (exists $instconds{$val})
{
my ($msg, $acond) =
$instconds{$val}->ambiguous_p ($val, $full_cond);
if ($msg)
{
error ($where, $msg, partial => 1);
my $dirtxt = "installed in `$dir'";
$dirtxt = "built for `$dir'"
if $dir eq 'EXTRA' || $dir eq 'noinst' || $dir eq 'check';
my $dircond =
$full_cond->true ? "" : " in condition $hcond";
error ($where, "`$val' should be $dirtxt$dircond ...",
partial => 1);
my $hacond = $acond->human;
my $adir = $instdirs{$val}{$acond};
my $adirtxt = "installed in `$adir'";
$adirtxt = "built for `$adir'"
if ($adir eq 'EXTRA' || $adir eq 'noinst'
|| $adir eq 'check');
my $adircond = $acond->true ? "" : " in condition $hacond";
my $onlyone = ($dir ne $adir) ?
("\nLibtool libraries can be built for only one "
. "destination.") : "";
error ($liblocations{$val}{$acond},
"... and should also be $adirtxt$adircond.$onlyone");
return;
}
}
else
{
$instconds{$val} = new Automake::DisjConditions;
}
$instdirs{$val}{$full_cond} = $dir;
$liblocations{$val}{$full_cond} = $where;
$instconds{$val} = $instconds{$val}->merge ($full_cond);
},
sub
{
return ();
},
skip_ac_subst => 1);
}
foreach my $pair (@liblist)
{
my ($where, $onelib) = @$pair;
my $seen_libobjs = 0;
my $obj = get_object_extension '.lo';
# Canonicalize names and check for misspellings.
my $xlib = &check_canonical_spelling ($onelib, '_LIBADD', '_LDFLAGS',
'_SOURCES', '_OBJECTS',
'_DEPENDENCIES');
# Check that the library fits the standard naming convention.
my $libname_rx = '^lib.*\.la';
my $ldvar = var ("${xlib}_LDFLAGS") || var ('AM_LDFLAGS');
my $ldvar2 = var ('LDFLAGS');
if (($ldvar && grep (/-module/, $ldvar->value_as_list_recursive))
|| ($ldvar2 && grep (/-module/, $ldvar2->value_as_list_recursive)))
{
# Relax name checking for libtool modules.
$libname_rx = '\.la';
}
my $bn = basename ($onelib);
if ($bn !~ /$libname_rx$/)
{
my $type = 'library';
if ($libname_rx eq '\.la')
{
$bn =~ s/^(lib|)(.*?)(?:\.[^.]*)?$/$1$2.la/;
$type = 'module';
}
else
{
$bn =~ s/^(?:lib)?(.*?)(?:\.[^.]*)?$/lib$1.la/;
}
my $suggestion = dirname ($onelib) . "/$bn";
$suggestion =~ s|^\./||g;
msg ('error-gnu/warn', $where,
"`$onelib' is not a standard libtool $type name\n"
. "did you mean `$suggestion'?")
}
$where->push_context ("while processing Libtool library `$onelib'");
$where->set (INTERNAL->get);
# Make sure we look at these.
set_seen ($xlib . '_LDFLAGS');
set_seen ($xlib . '_DEPENDENCIES');
# Generate support for conditional object inclusion in
# libraries.
if (var ($xlib . '_LIBADD'))
{
if (&handle_lib_objects ($xlib, $xlib . '_LIBADD'))
{
$seen_libobjs = 1;
}
}
else
{
&define_variable ($xlib . "_LIBADD", '', $where);
}
reject_var ("${xlib}_LDADD",
"use `${xlib}_LIBADD', not `${xlib}_LDADD'");
my $linker = &handle_source_transform ($xlib, $onelib, $obj, $where,
NONLIBTOOL => 0, LIBTOOL => 1);
# Determine program to use for link.
my $xlink;
if (var ($xlib . '_LINK'))
{
$xlink = $xlib . '_LINK';
}
else
{
$xlink = $linker ? $linker : 'LINK';
}
my $rpathvar = "am_${xlib}_rpath";
my $rpath = "\$($rpathvar)";
foreach my $rcond ($instconds{$onelib}->conds)
{
my $val;
if ($instdirs{$onelib}{$rcond} eq 'EXTRA'
|| $instdirs{$onelib}{$rcond} eq 'noinst'
|| $instdirs{$onelib}{$rcond} eq 'check')
{
# It's an EXTRA_ library, so we can't specify -rpath,
# because we don't know where the library will end up.
# The user probably knows, but generally speaking automake
# doesn't -- and in fact configure could decide
# dynamically between two different locations.
$val = '';
}
else
{
$val = ('-rpath $(' . $instdirs{$onelib}{$rcond} . 'dir)');
}
if ($rcond->true)
{
# If $rcond is true there is only one condition and
# there is no point defining an helper variable.
$rpath = $val;
}
else
{
define_pretty_variable ($rpathvar, $rcond, INTERNAL, $val);
}
}
# If the resulting library lies into a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($onelib);
# Remember to cleanup .libs/ in this directory.
my $dirname = dirname $onelib;
$libtool_clean_directories{$dirname} = 1;
$output_rules .= &file_contents ('ltlibrary',
$where,
LTLIBRARY => $onelib,
XLTLIBRARY => $xlib,
RPATH => $rpath,
XLINK => $xlink,
DIRSTAMP => $dirstamp);
if ($seen_libobjs)
{
if (var ($xlib . '_LIBADD'))
{
&check_libobjs_sources ($xlib, $xlib . '_LIBADD');
}
}
}
}
# See if any _SOURCES variable were misspelled.
sub check_typos ()
{
# It is ok if the user sets this particular variable.
set_seen 'AM_LDFLAGS';
foreach my $var (variables)
{
my $varname = $var->name;
# A configure variable is always legitimate.
next if exists $configure_vars{$varname};
my $check = 0;
foreach my $primary ('_SOURCES', '_LIBADD', '_LDADD', '_LDFLAGS',
'_DEPENDENCIES')
{
if ($varname =~ /^(.*)$primary$/)
{
$check = $1;
last;
}
}
next unless $check;
for my $cond ($var->conditions->conds)
{
msg_var ('syntax', $var, "variable `$varname' is defined but no"
. " program or\nlibrary has `$check' as canonic name"
. " (possible typo)")
unless $var->rdef ($cond)->seen;
}
}
}
# Handle scripts.
sub handle_scripts
{
# NOTE we no longer automatically clean SCRIPTS, because it is
# useful to sometimes distribute scripts verbatim. This happens
# e.g. in Automake itself.
&am_install_var ('-candist', 'scripts', 'SCRIPTS',
'bin', 'sbin', 'libexec', 'pkgdata',
'noinst', 'check');
}
## ------------------------ ##
## Handling Texinfo files. ##
## ------------------------ ##
# ($OUTFILE, $VFILE, @CLEAN_FILES)
# &scan_texinfo_file ($FILENAME)
# ------------------------------
# $OUTFILE - name of the info file produced by $FILENAME.
# $VFILE - name of the version.texi file used (undef if none).
# @CLEAN_FILES - list of byproducts (indexes etc.)
sub scan_texinfo_file ($)
{
my ($filename) = @_;
# Some of the following extensions are always created, no matter
# whether indexes are used or not. Other (like cps, fns, ... pgs)
# are only created when they are used. We used to scan $FILENAME
# for their use, but that is not enough: they could be used in
# included files. We can't scan included files because we don't
# know the include path. Therefore we always erase these files, no
# matter whether they are used or not.
#
# (tmp is only created if an @macro is used and a certain e-TeX
# feature is not available.)
my %clean_suffixes =
map { $_ => 1 } (qw(aux log toc tmp
cp cps
fn fns
ky kys
vr vrs
tp tps
pg pgs)); # grep 'new.*index' texinfo.tex
my $texi = new Automake::XFile "< $filename";
verb "reading $filename";
my ($outfile, $vfile);
while ($_ = $texi->getline)
{
if (/^\@setfilename +(\S+)/)
{
# Honor only the first @setfilename. (It's possible to have
# more occurrences later if the manual shows examples of how
# to use @setfilename...)
next if $outfile;
$outfile = $1;
if ($outfile =~ /\.(.+)$/ && $1 ne 'info')
{
error ("$filename:$.",
"output `$outfile' has unrecognized extension");
return;
}
}
# A "version.texi" file is actually any file whose name matches
# "vers*.texi".
elsif (/^\@include\s+(vers[^.]*\.texi)\s*$/)
{
$vfile = $1;
}
# Try to find new or unused indexes.
# Creating a new category of index.
elsif (/^\@def(code)?index (\w+)/)
{
$clean_suffixes{$2} = 1;
$clean_suffixes{"$2s"} = 1;
}
# Merging an index into an another.
elsif (/^\@syn(code)?index (\w+) (\w+)/)
{
delete $clean_suffixes{"$2s"};
$clean_suffixes{"$3s"} = 1;
}
}
if (! $outfile)
{
err_am "`$filename' missing \@setfilename";
return;
}
my $infobase = basename ($filename);
$infobase =~ s/\.te?xi(nfo)?$//;
return ($outfile, $vfile,
map { "$infobase.$_" } (sort keys %clean_suffixes));
}
# ($DIRSTAMP, @CLEAN_FILES)
# output_texinfo_build_rules ($SOURCE, $DEST, $INSRC, @DEPENDENCIES)
# ------------------------------------------------------------------
# SOURCE - the source Texinfo file
# DEST - the destination Info file
# INSRC - wether DEST should be built in the source tree
# DEPENDENCIES - known dependencies
sub output_texinfo_build_rules ($$$@)
{
my ($source, $dest, $insrc, @deps) = @_;
# Split `a.texi' into `a' and `.texi'.
my ($spfx, $ssfx) = ($source =~ /^(.*?)(\.[^.]*)?$/);
my ($dpfx, $dsfx) = ($dest =~ /^(.*?)(\.[^.]*)?$/);
$ssfx ||= "";
$dsfx ||= "";
# We can output two kinds of rules: the "generic" rules use Make
# suffix rules and are appropriate when $source and $dest do not lie
# in a sub-directory; the "specific" rules are needed in the other
# case.
#
# The former are output only once (this is not really apparent here,
# but just remember that some logic deeper in Automake will not
# output the same rule twice); while the later need to be output for
# each Texinfo source.
my $generic;
my $makeinfoflags;
my $sdir = dirname $source;
if ($sdir eq '.' && dirname ($dest) eq '.')
{
$generic = 1;
$makeinfoflags = '-I $(srcdir)';
}
else
{
$generic = 0;
$makeinfoflags = "-I $sdir -I \$(srcdir)/$sdir";
}
# A directory can contain two kinds of info files: some built in the
# source tree, and some built in the build tree. The rules are
# different in each case. However we cannot output two different
# set of generic rules. Because in-source builds are more usual, we
# use generic rules in this case and fall back to "specific" rules
# for build-dir builds. (It should not be a problem to invert this
# if needed.)
$generic = 0 unless $insrc;
# We cannot use a suffix rule to build info files with an empty
# extension. Otherwise we would output a single suffix inference
# rule, with separate dependencies, as in
#
# .texi:
# $(MAKEINFO) ...
# foo.info: foo.texi
#
# which confuse Solaris make. (See the Autoconf manual for
# details.) Therefore we use a specific rule in this case. This
# applies to info files only (dvi and pdf files always have an
# extension).
my $generic_info = ($generic && $dsfx) ? 1 : 0;
# If the resulting file lie into a subdirectory,
# make sure this directory will exist.
my $dirstamp = require_build_directory_maybe ($dest);
my $dipfx = ($insrc ? '$(srcdir)/' : '') . $dpfx;
$output_rules .= file_contents ('texibuild',
new Automake::Location,
DEPS => "@deps",
DEST_PREFIX => $dpfx,
DEST_INFO_PREFIX => $dipfx,
DEST_SUFFIX => $dsfx,
DIRSTAMP => $dirstamp,
GENERIC => $generic,
GENERIC_INFO => $generic_info,
INSRC => $insrc,
MAKEINFOFLAGS => $makeinfoflags,
SOURCE => ($generic
? '$<' : $source),
SOURCE_INFO => ($generic_info
? '$<' : $source),
SOURCE_REAL => $source,
SOURCE_SUFFIX => $ssfx,
);
return ($dirstamp, "$dpfx.dvi", "$dpfx.pdf", "$dpfx.ps", "$dpfx.html");
}
# $TEXICLEANS
# handle_texinfo_helper ($info_texinfos)
# --------------------------------------
# Handle all Texinfo source; helper for handle_texinfo.
sub handle_texinfo_helper ($)
{
my ($info_texinfos) = @_;
my (@infobase, @info_deps_list, @texi_deps);
my %versions;
my $done = 0;
my @texi_cleans;
# Build a regex matching user-cleaned files.
my $d = var 'DISTCLEANFILES';
my $c = var 'CLEANFILES';
my @f = ();
push @f, $d->value_as_list_recursive (inner_expand => 1) if $d;
push @f, $c->value_as_list_recursive (inner_expand => 1) if $c;
@f = map { s|[^A-Za-z_0-9*\[\]\-]|\\$&|g; s|\*|[^/]*|g; $_; } @f;
my $user_cleaned_files = '^(?:' . join ('|', @f) . ')$';
foreach my $texi
($info_texinfos->value_as_list_recursive (inner_expand => 1))
{
my $infobase = $texi;
$infobase =~ s/\.(txi|texinfo|texi)$//;
if ($infobase eq $texi)
{
# FIXME: report line number.
err_am "texinfo file `$texi' has unrecognized extension";
next;
}
push @infobase, $infobase;
# If 'version.texi' is referenced by input file, then include
# automatic versioning capability.
my ($out_file, $vtexi, @clean_files) =
scan_texinfo_file ("$relative_dir/$texi")
or next;
push (@texi_cleans, @clean_files);
# If the Texinfo source is in a subdirectory, create the
# resulting info in this subdirectory. If it is in the current
# directory, try hard to not prefix "./" because it breaks the
# generic rules.
my $outdir = dirname ($texi) . '/';
$outdir = "" if $outdir eq './';
$out_file = $outdir . $out_file;
# Until Automake 1.6.3, .info files were built in the
# source tree. This was an obstacle to the support of
# non-distributed .info files, and non-distributed .texi
# files.
#
# * Non-distributed .texi files is important in some packages
# where .texi files are built at make time, probably using
# other binaries built in the package itself, maybe using
# tools or information found on the build host. Because
# these files are not distributed they are always rebuilt
# at make time; they should therefore not lie in the source
# directory. One plan was to support this using
# nodist_info_TEXINFOS or something similar. (Doing this
# requires some sanity checks. For instance Automake should
# not allow:
# dist_info_TEXINFO = foo.texi
# nodist_foo_TEXINFO = included.texi
# because a distributed file should never depend on a
# non-distributed file.)
#
# * If .texi files are not distributed, then .info files should
# not be distributed either. There are also cases where one
# want to distribute .texi files, but do not want to
# distribute the .info files. For instance the Texinfo package
# distributes the tool used to build these files; it would
# be a waste of space to distribute them. It's not clear
# which syntax we should use to indicate that .info files should
# not be distributed. Akim Demaille suggested that eventually
# we switch to a new syntax:
# | Maybe we should take some inspiration from what's already
# | done in the rest of Automake. Maybe there is too much
# | syntactic sugar here, and you want
# | nodist_INFO = bar.info
# | dist_bar_info_SOURCES = bar.texi
# | bar_texi_DEPENDENCIES = foo.texi
# | with a bit of magic to have bar.info represent the whole
# | bar*info set. That's a lot more verbose that the current
# | situation, but it is # not new, hence the user has less
# | to learn.
# |
# | But there is still too much room for meaningless specs:
# | nodist_INFO = bar.info
# | dist_bar_info_SOURCES = bar.texi
# | dist_PS = bar.ps something-written-by-hand.ps
# | nodist_bar_ps_SOURCES = bar.texi
# | bar_texi_DEPENDENCIES = foo.texi
# | here bar.texi is dist_ in line 2, and nodist_ in 4.
#
# Back to the point, it should be clear that in order to support
# non-distributed .info files, we need to build them in the
# build tree, not in the source tree (non-distributed .texi
# files are less of a problem, because we do not output build
# rules for them). In Automake 1.7 .info build rules have been
# largely cleaned up so that .info files get always build in the
# build tree, even when distributed. The idea was that
# (1) if during a VPATH build the .info file was found to be
# absent or out-of-date (in the source tree or in the
# build tree), Make would rebuild it in the build tree.
# If an up-to-date source-tree of the .info file existed,
# make would not rebuild it in the build tree.
# (2) having two copies of .info files, one in the source tree
# and one (newer) in the build tree is not a problem
# because `make dist' always pick files in the build tree
# first.
# However it turned out the be a bad idea for several reasons:
# * Tru64, OpenBSD, and FreeBSD (not NetBSD) Make do not behave
# like GNU Make on point (1) above. These implementations
# of Make would always rebuild .info files in the build
# tree, even if such files were up to date in the source
# tree. Consequently, it was impossible to perform a VPATH
# build of a package containing Texinfo files using these
# Make implementations.
# (Refer to the Autoconf Manual, section "Limitation of
# Make", paragraph "VPATH", item "target lookup", for
# an account of the differences between these
# implementations.)
# * The GNU Coding Standards require these files to be built
# in the source-tree (when they are distributed, that is).
# * Keeping a fresher copy of distributed files in the
# build tree can be annoying during development because
# - if the files is kept under CVS, you really want it
# to be updated in the source tree
# - it is confusing that `make distclean' does not erase
# all files in the build tree.
#
# Consequently, starting with Automake 1.8, .info files are
# built in the source tree again. Because we still plan to
# support non-distributed .info files at some point, we
# have a single variable ($INSRC) that controls whether
# the current .info file must be built in the source tree
# or in the build tree. Actually this variable is switched
# off for .info files that appear to be cleaned; this is
# for backward compatibility with package such as Texinfo,
# which do things like
# info_TEXINFOS = texinfo.txi info-stnd.texi info.texi
# DISTCLEANFILES = texinfo texinfo-* info*.info*
# # Do not create info files for distribution.
# dist-info:
# in order not to distribute .info files.
my $insrc = ($out_file =~ $user_cleaned_files) ? 0 : 1;
my $soutdir = '$(srcdir)/' . $outdir;
$outdir = $soutdir if $insrc;
# If user specified file_TEXINFOS, then use that as explicit
# dependency list.
@texi_deps = ();
push (@texi_deps, "$soutdir$vtexi") if $vtexi;
my $canonical = canonicalize ($infobase);
if (var ($canonical . "_TEXINFOS"))
{
push (@texi_deps, '$(' . $canonical . '_TEXINFOS)');
push_dist_common ('$(' . $canonical . '_TEXINFOS)');
}
my ($dirstamp, @cfiles) =
output_texinfo_build_rules ($texi, $out_file, $insrc, @texi_deps);
push (@texi_cleans, @cfiles);
push (@info_deps_list, $out_file);
# If a vers*.texi file is needed, emit the rule.
if ($vtexi)
{
err_am ("`$vtexi', included in `$texi', "
. "also included in `$versions{$vtexi}'")
if defined $versions{$vtexi};
$versions{$vtexi} = $texi;
# We number the stamp-vti files. This is doable since the
# actual names don't matter much. We only number starting
# with the second one, so that the common case looks nice.
my $vti = ($done ? $done : 'vti');
++$done;
# This is ugly, but it is our historical practice.
if ($config_aux_dir_set_in_configure_ac)
{
require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
'mdate-sh');
}
else
{
require_file_with_macro (TRUE, 'info_TEXINFOS',
FOREIGN, 'mdate-sh');
}
my $conf_dir;
if ($config_aux_dir_set_in_configure_ac)
{
$conf_dir = "$am_config_aux_dir/";
}
else
{
$conf_dir = '$(srcdir)/';
}
$output_rules .= file_contents ('texi-vers',
new Automake::Location,
TEXI => $texi,
VTI => $vti,
STAMPVTI => "${soutdir}stamp-$vti",
VTEXI => "$soutdir$vtexi",
MDDIR => $conf_dir,
DIRSTAMP => $dirstamp);
}
}
# Handle location of texinfo.tex.
my $need_texi_file = 0;
my $texinfodir;
if (var ('TEXINFO_TEX'))
{
# The user defined TEXINFO_TEX so assume he knows what he is
# doing.
$texinfodir = ('$(srcdir)/'
. dirname (variable_value ('TEXINFO_TEX')));
}
elsif (option 'cygnus')
{
$texinfodir = '$(top_srcdir)/../texinfo';
define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
}
elsif ($config_aux_dir_set_in_configure_ac)
{
$texinfodir = $am_config_aux_dir;
define_variable ('TEXINFO_TEX', "$texinfodir/texinfo.tex", INTERNAL);
$need_texi_file = 2; # so that we require_conf_file later
}
else
{
$texinfodir = '$(srcdir)';
$need_texi_file = 1;
}
define_variable ('am__TEXINFO_TEX_DIR', $texinfodir, INTERNAL);
push (@dist_targets, 'dist-info');
if (! option 'no-installinfo')
{
# Make sure documentation is made and installed first. Use
# $(INFO_DEPS), not 'info', because otherwise recursive makes
# get run twice during "make all".
unshift (@all, '$(INFO_DEPS)');
}
define_files_variable ("DVIS", @infobase, 'dvi', INTERNAL);
define_files_variable ("PDFS", @infobase, 'pdf', INTERNAL);
define_files_variable ("PSS", @infobase, 'ps', INTERNAL);
define_files_variable ("HTMLS", @infobase, 'html', INTERNAL);
# This next isn't strictly needed now -- the places that look here
# could easily be changed to look in info_TEXINFOS. But this is
# probably better, in case noinst_TEXINFOS is ever supported.
define_variable ("TEXINFOS", variable_value ('info_TEXINFOS'), INTERNAL);
# Do some error checking. Note that this file is not required
# when in Cygnus mode; instead we defined TEXINFO_TEX explicitly
# up above.
if ($need_texi_file && ! option 'no-texinfo.tex')
{
if ($need_texi_file > 1)
{
require_conf_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
'texinfo.tex');
}
else
{
require_file_with_macro (TRUE, 'info_TEXINFOS', FOREIGN,
'texinfo.tex');
}
}
return makefile_wrap ("", "\t ", @texi_cleans);
}
# handle_texinfo ()
# -----------------
# Handle all Texinfo source.
sub handle_texinfo ()
{
reject_var 'TEXINFOS', "`TEXINFOS' is an anachronism; use `info_TEXINFOS'";
# FIXME: I think this is an obsolete future feature name.
reject_var 'html_TEXINFOS', "HTML generation not yet supported";
my $info_texinfos = var ('info_TEXINFOS');
my $texiclean = "";
if ($info_texinfos)
{
$texiclean = handle_texinfo_helper ($info_texinfos);
}
$output_rules .= file_contents ('texinfos',
new Automake::Location,
TEXICLEAN => $texiclean,
'LOCAL-TEXIS' => !!$info_texinfos);
}
# Handle any man pages.
sub handle_man_pages
{
reject_var 'MANS', "`MANS' is an anachronism; use `man_MANS'";
# Find all the sections in use. We do this by first looking for
# "standard" sections, and then looking for any additional
# sections used in man_MANS.
my (%sections, %vlist);
# We handle nodist_ for uniformity. man pages aren't distributed
# by default so it isn't actually very important.
foreach my $pfx ('', 'dist_', 'nodist_')
{
# Add more sections as needed.
foreach my $section ('0'..'9', 'n', 'l')
{
my $varname = $pfx . 'man' . $section . '_MANS';
if (var ($varname))
{
$sections{$section} = 1;
$varname = '$(' . $varname . ')';
$vlist{$varname} = 1;
&push_dist_common ($varname)
if $pfx eq 'dist_';
}
}
my $varname = $pfx . 'man_MANS';
my $var = var ($varname);
if ($var)
{
foreach ($var->value_as_list_recursive)
{
# A page like `foo.1c' goes into man1dir.
if (/\.([0-9a-z])([a-z]*)$/)
{
$sections{$1} = 1;
}
}
$varname = '$(' . $varname . ')';
$vlist{$varname} = 1;
&push_dist_common ($varname)
if $pfx eq 'dist_';
}
}
return unless %sections;
# Now for each section, generate an install and uninstall rule.
# Sort sections so output is deterministic.
foreach my $section (sort keys %sections)
{
$output_rules .= &file_contents ('mans',
new Automake::Location,
SECTION => $section);
}
my @mans = sort keys %vlist;
$output_vars .= file_contents ('mans-vars',
new Automake::Location,
MANS => "@mans");
push (@all, '$(MANS)')
unless option 'no-installman';
}
# Handle DATA variables.
sub handle_data
{
&am_install_var ('-noextra', '-candist', 'data', 'DATA',
'data', 'sysconf', 'sharedstate', 'localstate',
'pkgdata', 'lisp', 'noinst', 'check');
}
# Handle TAGS.
sub handle_tags
{
my @tag_deps = ();
my @ctag_deps = ();
if (var ('SUBDIRS'))
{
$output_rules .= ("tags-recursive:\n"
. "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
# Never fail here if a subdir fails; it
# isn't important.
. "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
. " && \$(MAKE) \$(AM_MAKEFLAGS) tags); \\\n"
. "\tdone\n");
push (@tag_deps, 'tags-recursive');
&depend ('.PHONY', 'tags-recursive');
$output_rules .= ("ctags-recursive:\n"
. "\tlist=\'\$(SUBDIRS)\'; for subdir in \$\$list; do \\\n"
# Never fail here if a subdir fails; it
# isn't important.
. "\t test \"\$\$subdir\" = . || (cd \$\$subdir"
. " && \$(MAKE) \$(AM_MAKEFLAGS) ctags); \\\n"
. "\tdone\n");
push (@ctag_deps, 'ctags-recursive');
&depend ('.PHONY', 'ctags-recursive');
}
if (&saw_sources_p (1)
|| var ('ETAGS_ARGS')
|| @tag_deps)
{
my @config;
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
foreach my $in (@ins)
{
# If the config header source is in this directory,
# require it.
push @config, basename ($in)
if $relative_dir eq dirname ($in);
}
}
$output_rules .= &file_contents ('tags',
new Automake::Location,
CONFIG => "@config",
TAGSDIRS => "@tag_deps",
CTAGSDIRS => "@ctag_deps");
set_seen 'TAGS_DEPENDENCIES';
}
elsif (reject_var ('TAGS_DEPENDENCIES',
"doesn't make sense to define `TAGS_DEPENDENCIES'"
. "without\nsources or `ETAGS_ARGS'"))
{
}
else
{
# Every Makefile must define some sort of TAGS rule.
# Otherwise, it would be possible for a top-level "make TAGS"
# to fail because some subdirectory failed.
$output_rules .= "tags: TAGS\nTAGS:\n\n";
# Ditto ctags.
$output_rules .= "ctags: CTAGS\nCTAGS:\n\n";
}
}
# Handle multilib support.
sub handle_multilib
{
if ($seen_multilib && $relative_dir eq '.')
{
$output_rules .= &file_contents ('multilib', new Automake::Location);
push (@all, 'all-multi');
}
}
# user_phony_rule ($NAME)
# -----------------------
# Return false if rule $NAME does not exist. Otherwise,
# declare it as phony, complete its definition (in case it is
# conditional), and return its Automake::Rule instance.
sub user_phony_rule ($)
{
my ($name) = @_;
my $rule = rule $name;
if ($rule)
{
depend ('.PHONY', $name);
# Define $NAME in all condition where it is not already defined,
# so that it is always OK to depend on $NAME.
for my $c ($rule->not_always_defined_in_cond (TRUE)->conds)
{
Automake::Rule::define ($name, 'internal', RULE_AUTOMAKE,
$c, INTERNAL);
$output_rules .= $c->subst_string . "$name:\n";
}
}
return $rule;
}
# $BOOLEAN
# &for_dist_common ($A, $B)
# -------------------------
# Subroutine for &handle_dist: sort files to dist.
#
# We put README first because it then becomes easier to make a
# Usenet-compliant shar file (in these, README must be first).
#
# FIXME: do more ordering of files here.
sub for_dist_common
{
return 0
if $a eq $b;
return -1
if $a eq 'README';
return 1
if $b eq 'README';
return $a cmp $b;
}
# handle_dist
# -----------
# Handle 'dist' target.
sub handle_dist ()
{
# Substutions for distdit.am
my %transform;
# Define DIST_SUBDIRS. This must always be done, regardless of the
# no-dist setting: target like `distclean' or `maintainer-clean' use it.
my $subdirs = var ('SUBDIRS');
if ($subdirs)
{
# If SUBDIRS is conditionally defined, then set DIST_SUBDIRS
# to all possible directories, and use it. If DIST_SUBDIRS is
# defined, just use it.
# Note that we check DIST_SUBDIRS first on purpose, so that
# we don't call has_conditional_contents for now reason.
# (In the past one project used so many conditional subdirectories
# that calling has_conditional_contents on SUBDIRS caused
# automake to grow to 150Mb -- this should not happen with
# the current implementation of has_conditional_contents,
# but it's more efficient to avoid the call anyway.)
if (var ('DIST_SUBDIRS'))
{
}
elsif ($subdirs->has_conditional_contents)
{
define_pretty_variable
('DIST_SUBDIRS', TRUE, INTERNAL,
uniq ($subdirs->value_as_list_recursive));
}
else
{
# We always define this because that is what `distclean'
# wants.
define_pretty_variable ('DIST_SUBDIRS', TRUE, INTERNAL,
'$(SUBDIRS)');
}
}
# The remaining definitions are only required when a dist target is used.
return if option 'no-dist';
# At least one of the archive formats must be enabled.
if ($relative_dir eq '.')
{
my $archive_defined = option 'no-dist-gzip' ? 0 : 1;
$archive_defined ||=
grep { option "dist-$_" } ('shar', 'zip', 'tarZ', 'bzip2');
error (option 'no-dist-gzip',
"no-dist-gzip specified but no dist-* specified, "
. "at least one archive format must be enabled")
unless $archive_defined;
}
# Look for common files that should be included in distribution.
# If the aux dir is set, and it does not have a Makefile.am, then
# we check for these files there as well.
my $check_aux = 0;
if ($relative_dir eq '.'
&& $config_aux_dir_set_in_configure_ac)
{
if (! &is_make_dir ($config_aux_dir))
{
$check_aux = 1;
}
}
foreach my $cfile (@common_files)
{
if (dir_has_case_matching_file ($relative_dir, $cfile)
# The file might be absent, but if it can be built it's ok.
|| rule $cfile)
{
&push_dist_common ($cfile);
}
# Don't use `elsif' here because a file might meaningfully
# appear in both directories.
if ($check_aux && dir_has_case_matching_file ($config_aux_dir, $cfile))
{
&push_dist_common ("$config_aux_dir/$cfile")
}
}
# We might copy elements from $configure_dist_common to
# %dist_common if we think we need to. If the file appears in our
# directory, we would have discovered it already, so we don't
# check that. But if the file is in a subdir without a Makefile,
# we want to distribute it here if we are doing `.'. Ugly!
if ($relative_dir eq '.')
{
foreach my $file (split (' ' , $configure_dist_common))
{
push_dist_common ($file)
unless is_make_dir (dirname ($file));
}
}
# Files to distributed. Don't use ->value_as_list_recursive
# as it recursively expands `$(dist_pkgdata_DATA)' etc.
my @dist_common = split (' ', rvar ('DIST_COMMON')->variable_value);
@dist_common = uniq (sort for_dist_common (@dist_common));
variable_delete 'DIST_COMMON';
define_pretty_variable ('DIST_COMMON', TRUE, INTERNAL, @dist_common);
# Now that we've processed DIST_COMMON, disallow further attempts
# to set it.
$handle_dist_run = 1;
# Scan EXTRA_DIST to see if we need to distribute anything from a
# subdir. If so, add it to the list. I didn't want to do this
# originally, but there were so many requests that I finally
# relented.
my $extra_dist = var ('EXTRA_DIST');
if ($extra_dist)
{
# FIXME: This should be fixed to work with conditions. That
# will require only making the entries in %dist_dirs under the
# appropriate condition. This is meaningful if the nature of
# the distribution should depend upon the configure options
# used.
foreach ($extra_dist->value_as_list_recursive (skip_ac_subst => 1))
{
next unless s,/+[^/]+$,,;
$dist_dirs{$_} = 1
unless $_ eq '.';
}
}
# We have to check DIST_COMMON for extra directories in case the
# user put a source used in AC_OUTPUT into a subdir.
my $topsrcdir = backname ($relative_dir);
foreach (rvar ('DIST_COMMON')->value_as_list_recursive (skip_ac_subst => 1))
{
s/\$\(top_srcdir\)/$topsrcdir/;
s/\$\(srcdir\)/./;
# Strip any leading `./'.
s,^(:?\./+)*,,;
next unless s,/+[^/]+$,,;
$dist_dirs{$_} = 1
unless $_ eq '.';
}
$transform{'DISTCHECK-HOOK'} = !! rule 'distcheck-hook';
$transform{'GETTEXT'} = $seen_gettext && !$seen_gettext_external;
# Prepend $(distdir) to each directory given.
my %rewritten = map { '$(distdir)/' . "$_" => 1 } keys %dist_dirs;
$transform{'DISTDIRS'} = join (' ', sort keys %rewritten);
# If the target `dist-hook' exists, make sure it is run. This
# allows users to do random weird things to the distribution
# before it is packaged up.
push (@dist_targets, 'dist-hook')
if user_phony_rule 'dist-hook';
$transform{'DIST-TARGETS'} = join (' ', @dist_targets);
my $flm = option ('filename-length-max');
my $filename_filter = $flm ? '.' x $flm->[1] : '';
$output_rules .= &file_contents ('distdir',
new Automake::Location,
%transform,
FILENAME_FILTER => $filename_filter);
}
# check_directory ($NAME, $WHERE)
# -------------------------------
# Ensure $NAME is a directory, and that it uses sane name.
# Use $WHERE as a location in the diagnostic, if any.
sub check_directory ($$)
{
my ($dir, $where) = @_;
error $where, "required directory $relative_dir/$dir does not exist"
unless -d "$relative_dir/$dir";
# If an `obj/' directory exists, BSD make will enter it before
# reading `Makefile'. Hence the `Makefile' in the current directory
# will not be read.
#
# % cat Makefile
# all:
# echo Hello
# % cat obj/Makefile
# all:
# echo World
# % make # GNU make
# echo Hello
# Hello
# % pmake # BSD make
# echo World
# World
msg ('portability', $where,
"naming a subdirectory `obj' causes troubles with BSD make")
if $dir eq 'obj';
# `aux' is probably the most important of the following forbidden name,
# since it's tempting to use it as an AC_CONFIG_AUX_DIR.
msg ('portability', $where,
"name `$dir' is reserved on W32 and DOS platforms")
if grep (/^\Q$dir\E$/i, qw/aux lpt1 lpt2 lpt3 com1 com2 com3 com4 con prn/);
}
# check_directories_in_var ($VARIABLE)
# ------------------------------------
# Recursively check all items in variables $VARIABLE as directories
sub check_directories_in_var ($)
{
my ($var) = @_;
$var->traverse_recursively
(sub
{
my ($var, $val, $cond, $full_cond) = @_;
check_directory ($val, $var->rdef ($cond)->location);
return ();
},
undef,
skip_ac_subst => 1);
}
# &handle_subdirs ()
# ------------------
# Handle subdirectories.
sub handle_subdirs ()
{
my $subdirs = var ('SUBDIRS');
return
unless $subdirs;
check_directories_in_var $subdirs;
my $dsubdirs = var ('DIST_SUBDIRS');
check_directories_in_var $dsubdirs
if $dsubdirs;
$output_rules .= &file_contents ('subdirs', new Automake::Location);
rvar ('RECURSIVE_TARGETS')->rdef (TRUE)->{'pretty'} = VAR_SORTED; # Gross!
}
# ($REGEN, @DEPENDENCIES)
# &scan_aclocal_m4
# ----------------
# If aclocal.m4 creation is automated, return the list of its dependencies.
sub scan_aclocal_m4 ()
{
my $regen_aclocal = 0;
set_seen 'CONFIG_STATUS_DEPENDENCIES';
set_seen 'CONFIGURE_DEPENDENCIES';
if (-f 'aclocal.m4')
{
&define_variable ("ACLOCAL_M4", '$(top_srcdir)/aclocal.m4', INTERNAL);
my $aclocal = new Automake::XFile "< aclocal.m4";
my $line = $aclocal->getline;
$regen_aclocal = $line =~ 'generated automatically by aclocal';
}
my @ac_deps = ();
if (set_seen ('ACLOCAL_M4_SOURCES'))
{
push (@ac_deps, '$(ACLOCAL_M4_SOURCES)');
msg_var ('obsolete', 'ACLOCAL_M4_SOURCES',
"`ACLOCAL_M4_SOURCES' is obsolete.\n"
. "It should be safe to simply remove it.");
}
# Note that it might be possible that aclocal.m4 doesn't exist but
# should be auto-generated. This case probably isn't very
# important.
return ($regen_aclocal, @ac_deps);
}
# @DEPENDENCIES
# &prepend_srcdir (@INPUTS)
# -------------------------
# Prepend $(srcdir) or $(top_srcdir) to all @INPUTS. The idea is that
# if an input file has a directory part the same as the current
# directory, then the directory part is simply replaced by $(srcdir).
# But if the directory part is different, then $(top_srcdir) is
# prepended.
sub prepend_srcdir (@)
{
my (@inputs) = @_;
my @newinputs;
foreach my $single (@inputs)
{
if (dirname ($single) eq $relative_dir)
{
push (@newinputs, '$(srcdir)/' . basename ($single));
}
else
{
push (@newinputs, '$(top_srcdir)/' . $single);
}
}
return @newinputs;
}
# @DEPENDENCIES
# rewrite_inputs_into_dependencies ($OUTPUT, @INPUTS)
# ---------------------------------------------------
# Compute a list of dependencies appropriate for the rebuild
# rule of
# AC_CONFIG_FILES($OUTPUT:$INPUT[0]:$INPUTS[1]:...)
# Also distribute $INPUTs which are not build by another AC_CONFIG_FILES.
sub rewrite_inputs_into_dependencies ($@)
{
my ($file, @inputs) = @_;
my @res = ();
for my $i (@inputs)
{
if (exists $ac_config_files_location{$i})
{
my $di = dirname $i;
if ($di eq $relative_dir)
{
$i = basename $i;
}
# In the top-level Makefile we do not use $(top_builddir), because
# we are already there, and since the targets are built without
# a $(top_builddir), it helps BSD Make to match them with
# dependencies.
elsif ($relative_dir ne '.')
{
$i = '$(top_builddir)/' . $i;
}
}
else
{
msg ('error', $ac_config_files_location{$file},
"required file `$i' not found")
unless exists $output_files{$i} || -f $i;
($i) = prepend_srcdir ($i);
push_dist_common ($i);
}
push @res, $i;
}
return @res;
}
# &handle_configure ($MAKEFILE_AM, $MAKEFILE_IN, $MAKEFILE, @INPUTS)
# ------------------------------------------------------------------
# Handle remaking and configure stuff.
# We need the name of the input file, to do proper remaking rules.
sub handle_configure ($$$@)
{
my ($makefile_am, $makefile_in, $makefile, @inputs) = @_;
prog_error 'empty @inputs'
unless @inputs;
my ($rel_makefile_am, $rel_makefile_in) = prepend_srcdir ($makefile_am,
$makefile_in);
my $rel_makefile = basename $makefile;
my $colon_infile = ':' . join (':', @inputs);
$colon_infile = '' if $colon_infile eq ":$makefile.in";
my @rewritten = rewrite_inputs_into_dependencies ($makefile, @inputs);
my ($regen_aclocal_m4, @aclocal_m4_deps) = scan_aclocal_m4;
define_pretty_variable ('am__aclocal_m4_deps', TRUE, INTERNAL,
@configure_deps, @aclocal_m4_deps,
'$(top_srcdir)/' . $configure_ac);
my @configuredeps = ('$(am__aclocal_m4_deps)', '$(CONFIGURE_DEPENDENCIES)');
push @configuredeps, '$(ACLOCAL_M4)' if -f 'aclocal.m4';
define_pretty_variable ('am__configure_deps', TRUE, INTERNAL,
@configuredeps);
$output_rules .= file_contents
('configure',
new Automake::Location,
MAKEFILE => $rel_makefile,
'MAKEFILE-DEPS' => "@rewritten",
'CONFIG-MAKEFILE' => ($relative_dir eq '.') ? '$@' : '$(subdir)/$@',
'MAKEFILE-IN' => $rel_makefile_in,
'MAKEFILE-IN-DEPS' => "@include_stack",
'MAKEFILE-AM' => $rel_makefile_am,
STRICTNESS => global_option 'cygnus'
? 'cygnus' : $strictness_name,
'USE-DEPS' => global_option 'no-dependencies'
? ' --ignore-deps' : '',
'MAKEFILE-AM-SOURCES' => "$makefile$colon_infile",
'REGEN-ACLOCAL-M4' => $regen_aclocal_m4);
if ($relative_dir eq '.')
{
&push_dist_common ('acconfig.h')
if -f 'acconfig.h';
}
# If we have a configure header, require it.
my $hdr_index = 0;
my @distclean_config;
foreach my $spec (@config_headers)
{
$hdr_index += 1;
# $CONFIG_H_PATH: config.h from top level.
my ($config_h_path, @ins) = split_config_file_spec ($spec);
my $config_h_dir = dirname ($config_h_path);
# If the header is in the current directory we want to build
# the header here. Otherwise, if we're at the topmost
# directory and the header's directory doesn't have a
# Makefile, then we also want to build the header.
if ($relative_dir eq $config_h_dir
|| ($relative_dir eq '.' && ! &is_make_dir ($config_h_dir)))
{
my ($cn_sans_dir, $stamp_dir);
if ($relative_dir eq $config_h_dir)
{
$cn_sans_dir = basename ($config_h_path);
$stamp_dir = '';
}
else
{
$cn_sans_dir = $config_h_path;
if ($config_h_dir eq '.')
{
$stamp_dir = '';
}
else
{
$stamp_dir = $config_h_dir . '/';
}
}
# This will also distribute all inputs.
@ins = rewrite_inputs_into_dependencies ($config_h_path, @ins);
# Header defined and in this directory.
my @files;
if (-f $config_h_path . '.top')
{
push (@files, "$cn_sans_dir.top");
}
if (-f $config_h_path . '.bot')
{
push (@files, "$cn_sans_dir.bot");
}
push_dist_common (@files);
# For now, acconfig.h can only appear in the top srcdir.
if (-f 'acconfig.h')
{
push (@files, '$(top_srcdir)/acconfig.h');
}
my $stamp = "${stamp_dir}stamp-h${hdr_index}";
$output_rules .=
file_contents ('remake-hdr',
new Automake::Location,
FILES => "@files",
CONFIG_H => $cn_sans_dir,
CONFIG_HIN => $ins[0],
CONFIG_H_DEPS => "@ins",
CONFIG_H_PATH => $config_h_path,
STAMP => "$stamp");
push @distclean_config, $cn_sans_dir, $stamp;
}
}
$output_rules .= file_contents ('clean-hdr',
new Automake::Location,
FILES => "@distclean_config")
if @distclean_config;
# Distribute and define mkinstalldirs only if it is already present
# in the package, for backward compatibility (some people may still
# use $(mkinstalldirs)).
my $mkidpath = "$config_aux_dir/mkinstalldirs";
if (-f $mkidpath)
{
# Use require_file so that any existingscript gets updated
# by --force-missing.
require_conf_file ($mkidpath, FOREIGN, 'mkinstalldirs');
define_variable ('mkinstalldirs',
"\$(SHELL) $am_config_aux_dir/mkinstalldirs", INTERNAL);
}
else
{
# Use $(install_sh), not $(mkdir_p) because the latter requires
# at least one argument, and $(mkinstalldirs) used to work
# even without arguments (e.g. $(mkinstalldirs) $(conditional_dir)).
define_variable ('mkinstalldirs', '$(install_sh) -d', INTERNAL);
}
reject_var ('CONFIG_HEADER',
"`CONFIG_HEADER' is an anachronism; now determined "
. "automatically\nfrom `$configure_ac'");
my @config_h;
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
# Generate CONFIG_HEADER define.
if ($relative_dir eq dirname ($out))
{
push @config_h, basename ($out);
}
else
{
push @config_h, "\$(top_builddir)/$out";
}
}
define_variable ("CONFIG_HEADER", "@config_h", INTERNAL)
if @config_h;
# Now look for other files in this directory which must be remade
# by config.status, and generate rules for them.
my @actual_other_files = ();
foreach my $lfile (@other_input_files)
{
my $file;
my @inputs;
if ($lfile =~ /^([^:]*):(.*)$/)
{
# This is the ":" syntax of AC_OUTPUT.
$file = $1;
@inputs = split (':', $2);
}
else
{
# Normal usage.
$file = $lfile;
@inputs = $file . '.in';
}
# Automake files should not be stored in here, but in %MAKE_LIST.
prog_error ("$lfile in \@other_input_files\n"
. "\@other_input_files = (@other_input_files)")
if -f $file . '.am';
my $local = basename ($file);
# Make sure the dist directory for each input file is created.
# We only have to do this at the topmost level though. This
# is a bit ugly but it easier than spreading out the logic,
# especially in cases like AC_OUTPUT(foo/out:bar/in), where
# there is no Makefile in bar/.
if ($relative_dir eq '.')
{
foreach (@inputs)
{
$dist_dirs{dirname ($_)} = 1;
}
}
# We skip files that aren't in this directory. However, if
# the file's directory does not have a Makefile, and we are
# currently doing `.', then we create a rule to rebuild the
# file in the subdir.
my $fd = dirname ($file);
if ($fd ne $relative_dir)
{
if ($relative_dir eq '.' && ! &is_make_dir ($fd))
{
$local = $file;
}
else
{
next;
}
}
my @rewritten_inputs = rewrite_inputs_into_dependencies ($file, @inputs);
$output_rules .= ($local . ': '
. '$(top_builddir)/config.status '
. "@rewritten_inputs\n"
. "\t"
. 'cd $(top_builddir) && '
. '$(SHELL) ./config.status '
. ($relative_dir eq '.' ? '' : '$(subdir)/')
. '$@'
. "\n");
push (@actual_other_files, $local);
}
# For links we should clean destinations and distribute sources.
foreach my $spec (@config_links)
{
my ($link, $file) = split /:/, $spec;
# Some people do AC_CONFIG_LINKS($computed). We only handle
# the DEST:SRC form.
next unless $file;
my $where = $ac_config_files_location{$link};
# Skip destinations that contain shell variables.
if ($link !~ /\$/)
{
# We skip links that aren't in this directory. However, if
# the link's directory does not have a Makefile, and we are
# currently doing `.', then we add the link to CONFIG_CLEAN_FILES
# in `.'s Makefile.in.
my $local = basename ($link);
my $fd = dirname ($link);
if ($fd ne $relative_dir)
{
if ($relative_dir eq '.' && ! &is_make_dir ($fd))
{
$local = $link;
}
else
{
$local = undef;
}
}
push @actual_other_files, $local if $local;
}
# Do not process sources that contain shell variables.
if ($file !~ /\$/)
{
my $fd = dirname ($file);
# Make sure the dist directory for each input file is created.
# We only have to do this at the topmost level though.
if ($relative_dir eq '.')
{
$dist_dirs{$fd} = 1;
}
# We distribute files that are in this directory.
# At the top-level (`.') we also distribute files whose
# directory does not have a Makefile.
if (($fd eq $relative_dir)
|| ($relative_dir eq '.' && ! &is_make_dir ($fd)))
{
# The following will distribute $file as a side-effect when
# it is appropriate (i.e., when $file is not already an output).
# We do not need the result, just the side-effect.
rewrite_inputs_into_dependencies ($link, $file);
}
}
}
# These files get removed by "make distclean".
define_pretty_variable ('CONFIG_CLEAN_FILES', TRUE, INTERNAL,
@actual_other_files);
}
# Handle C headers.
sub handle_headers
{
my @r = &am_install_var ('-defaultdist', 'header', 'HEADERS', 'include',
'oldinclude', 'pkginclude',
'noinst', 'check');
foreach (@r)
{
next unless $_->[1] =~ /\..*$/;
&saw_extension ($&);
}
}
sub handle_gettext
{
return if ! $seen_gettext || $relative_dir ne '.';
my $subdirs = var 'SUBDIRS';
if (! $subdirs)
{
err_ac "AM_GNU_GETTEXT used but SUBDIRS not defined";
return;
}
# Perform some sanity checks to help users get the right setup.
# We disable these tests when po/ doesn't exist in order not to disallow
# unusual gettext setups.
#
# Bruno Haible:
# | The idea is:
# |
# | 1) If a package doesn't have a directory po/ at top level, it
# | will likely have multiple po/ directories in subpackages.
# |
# | 2) It is useful to warn for the absence of intl/ if AM_GNU_GETTEXT
# | is used without 'external'. It is also useful to warn for the
# | presence of intl/ if AM_GNU_GETTEXT([external]) is used. Both
# | warnings apply only to the usual layout of packages, therefore
# | they should both be disabled if no po/ directory is found at
# | top level.
if (-d 'po')
{
my @subdirs = $subdirs->value_as_list_recursive;
msg_var ('syntax', $subdirs,
"AM_GNU_GETTEXT used but `po' not in SUBDIRS")
if ! grep ($_ eq 'po', @subdirs);
# intl/ is not required when AM_GNU_GETTEXT is called with
# the `external' option.
msg_var ('syntax', $subdirs,
"AM_GNU_GETTEXT used but `intl' not in SUBDIRS")
if (! $seen_gettext_external
&& ! grep ($_ eq 'intl', @subdirs));
# intl/ should not be used with AM_GNU_GETTEXT([external])
msg_var ('syntax', $subdirs,
"`intl' should not be in SUBDIRS when "
. "AM_GNU_GETTEXT([external]) is used")
if ($seen_gettext_external && grep ($_ eq 'intl', @subdirs));
}
require_file ($ac_gettext_location, GNU, 'ABOUT-NLS');
}
# Handle footer elements.
sub handle_footer
{
reject_rule ('.SUFFIXES',
"use variable `SUFFIXES', not target `.SUFFIXES'");
# Note: AIX 4.1 /bin/make will fail if any suffix rule appears
# before .SUFFIXES. So we make sure that .SUFFIXES appears before
# anything else, by sticking it right after the default: target.
$output_header .= ".SUFFIXES:\n";
my $suffixes = var 'SUFFIXES';
my @suffixes = Automake::Rule::suffixes;
if (@suffixes || $suffixes)
{
# Make sure SUFFIXES has unique elements. Sort them to ensure
# the output remains consistent. However, $(SUFFIXES) is
# always at the start of the list, unsorted. This is done
# because make will choose rules depending on the ordering of
# suffixes, and this lets the user have some control. Push
# actual suffixes, and not $(SUFFIXES). Some versions of make
# do not like variable substitutions on the .SUFFIXES line.
my @user_suffixes = ($suffixes
? $suffixes->value_as_list_recursive : ());
my %suffixes = map { $_ => 1 } @suffixes;
delete @suffixes{@user_suffixes};
$output_header .= (".SUFFIXES: "
. join (' ', @user_suffixes, sort keys %suffixes)
. "\n");
}
$output_trailer .= file_contents ('footer', new Automake::Location);
}
# Generate `make install' rules.
sub handle_install ()
{
$output_rules .= &file_contents
('install',
new Automake::Location,
maybe_BUILT_SOURCES => (set_seen ('BUILT_SOURCES')
? (" \$(BUILT_SOURCES)\n"
. "\t\$(MAKE) \$(AM_MAKEFLAGS)")
: ''),
'installdirs-local' => (user_phony_rule 'installdirs-local'
? ' installdirs-local' : ''),
am__installdirs => variable_value ('am__installdirs') || '');
}
# Deal with all and all-am.
sub handle_all ($)
{
my ($makefile) = @_;
# Output `all-am'.
# Put this at the beginning for the sake of non-GNU makes. This
# is still wrong if these makes can run parallel jobs. But it is
# right enough.
unshift (@all, basename ($makefile));
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
push (@all, basename ($out))
if dirname ($out) eq $relative_dir;
}
# Install `all' hooks.
push (@all, "all-local")
if user_phony_rule "all-local";
&pretty_print_rule ("all-am:", "\t\t", @all);
&depend ('.PHONY', 'all-am', 'all');
# Output `all'.
my @local_headers = ();
push @local_headers, '$(BUILT_SOURCES)'
if var ('BUILT_SOURCES');
foreach my $spec (@config_headers)
{
my ($out, @ins) = split_config_file_spec ($spec);
push @local_headers, basename ($out)
if dirname ($out) eq $relative_dir;
}
if (@local_headers)
{
# We need to make sure config.h is built before we recurse.
# We also want to make sure that built sources are built
# before any ordinary `all' targets are run. We can't do this
# by changing the order of dependencies to the "all" because
# that breaks when using parallel makes. Instead we handle
# things explicitly.
$output_all .= ("all: @local_headers"
. "\n\t"
. '$(MAKE) $(AM_MAKEFLAGS) '
. (var ('SUBDIRS') ? 'all-recursive' : 'all-am')
. "\n\n");
}
else
{
$output_all .= "all: " . (var ('SUBDIRS')
? 'all-recursive' : 'all-am') . "\n\n";
}
}
# &do_check_merge_target ()
# -------------------------
# Handle check merge target specially.
sub do_check_merge_target ()
{
# Include user-defined local form of target.
push @check_tests, 'check-local'
if user_phony_rule 'check-local';
# In --cygnus mode, check doesn't depend on all.
if (option 'cygnus')
{
# Just run the local check rules.
pretty_print_rule ('check-am:', "\t\t", @check);
}
else
{
# The check target must depend on the local equivalent of
# `all', to ensure all the primary targets are built. Then it
# must build the local check rules.
$output_rules .= "check-am: all-am\n";
pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
@check)
if @check;
}
pretty_print_rule ("\t\$(MAKE) \$(AM_MAKEFLAGS)", "\t ",
@check_tests)
if @check_tests;
depend '.PHONY', 'check', 'check-am';
# Handle recursion. We have to honor BUILT_SOURCES like for `all:'.
$output_rules .= ("check: "
. (var ('BUILT_SOURCES')
? "\$(BUILT_SOURCES)\n\t\$(MAKE) \$(AM_MAKEFLAGS) "
: '')
. (var ('SUBDIRS') ? 'check-recursive' : 'check-am')
. "\n");
}
# handle_clean ($MAKEFILE)
# ------------------------
# Handle all 'clean' targets.
sub handle_clean ($)
{
my ($makefile) = @_;
# Clean the files listed in user variables if they exist.
$clean_files{'$(MOSTLYCLEANFILES)'} = MOSTLY_CLEAN
if var ('MOSTLYCLEANFILES');
$clean_files{'$(CLEANFILES)'} = CLEAN
if var ('CLEANFILES');
$clean_files{'$(DISTCLEANFILES)'} = DIST_CLEAN
if var ('DISTCLEANFILES');
$clean_files{'$(MAINTAINERCLEANFILES)'} = MAINTAINER_CLEAN
if var ('MAINTAINERCLEANFILES');
# Built sources are automatically removed by maintainer-clean.
$clean_files{'$(BUILT_SOURCES)'} = MAINTAINER_CLEAN
if var ('BUILT_SOURCES');
# Compute a list of "rm"s to run for each target.
my %rms = (MOSTLY_CLEAN, [],
CLEAN, [],
DIST_CLEAN, [],
MAINTAINER_CLEAN, []);
foreach my $file (keys %clean_files)
{
my $when = $clean_files{$file};
prog_error 'invalid entry in %clean_files'
unless exists $rms{$when};
my $rm = "rm -f $file";
# If file is a variable, make sure when don't call `rm -f' without args.
$rm ="test -z \"$file\" || $rm"
if ($file =~ /^\s*\$(\(.*\)|\{.*\})\s*$/);
push @{$rms{$when}}, "\t-$rm\n";
}
$output_rules .= &file_contents
('clean',
new Automake::Location,
MOSTLYCLEAN_RMS => join ('', sort @{$rms{&MOSTLY_CLEAN}}),
CLEAN_RMS => join ('', sort @{$rms{&CLEAN}}),
DISTCLEAN_RMS => join ('', sort @{$rms{&DIST_CLEAN}}),
MAINTAINER_CLEAN_RMS => join ('', sort @{$rms{&MAINTAINER_CLEAN}}),
MAKEFILE => basename $makefile,
);
}
# &target_cmp ($A, $B)
# --------------------
# Subroutine for &handle_factored_dependencies to let `.PHONY' be last.
sub target_cmp
{
return 0
if $a eq $b;
return -1
if $b eq '.PHONY';
return 1
if $a eq '.PHONY';
return $a cmp $b;
}
# &handle_factored_dependencies ()
# --------------------------------
# Handle everything related to gathered targets.
sub handle_factored_dependencies
{
# Reject bad hooks.
foreach my $utarg ('uninstall-data-local', 'uninstall-data-hook',
'uninstall-exec-local', 'uninstall-exec-hook')
{
my $x = $utarg;
$x =~ s/(data|exec)-//;
reject_rule ($utarg, "use `$x', not `$utarg'");
}
reject_rule ('install-local',
"use `install-data-local' or `install-exec-local', "
. "not `install-local'");
reject_rule ('install-info-local',
"`install-info-local' target defined but "
. "`no-installinfo' option not in use")
unless option 'no-installinfo';
# Install the -local hooks.
foreach (keys %dependencies)
{
# Hooks are installed on the -am targets.
s/-am$// or next;
depend ("$_-am", "$_-local")
if user_phony_rule "$_-local";
}
# Install the -hook hooks.
# FIXME: Why not be as liberal as we are with -local hooks?
foreach ('install-exec', 'install-data', 'uninstall')
{
if (user_phony_rule "$_-hook")
{
$actions{"$_-am"} .=
("\t\@\$(NORMAL_INSTALL)\n"
. "\t" . '$(MAKE) $(AM_MAKEFLAGS) ' . "$_-hook\n");
}
}
# All the required targets are phony.
depend ('.PHONY', keys %required_targets);
# Actually output gathered targets.
foreach (sort target_cmp keys %dependencies)
{
# If there is nothing about this guy, skip it.
next
unless (@{$dependencies{$_}}
|| $actions{$_}
|| $required_targets{$_});
# Define gathered targets in undefined conditions.
# FIXME: Right now we must handle .PHONY as an exception,
# because people write things like
# .PHONY: myphonytarget
# to append dependencies. This would not work if Automake
# refrained from defining its own .PHONY target as it does
# with other overridden targets.
my @undefined_conds = (TRUE,);
if ($_ ne '.PHONY')
{
@undefined_conds =
Automake::Rule::define ($_, 'internal',
RULE_AUTOMAKE, TRUE, INTERNAL);
}
my @uniq_deps = uniq (sort @{$dependencies{$_}});
foreach my $cond (@undefined_conds)
{
my $condstr = $cond->subst_string;
&pretty_print_rule ("$condstr$_:", "$condstr\t", @uniq_deps);
$output_rules .= $actions{$_} if defined $actions{$_};
$output_rules .= "\n";
}
}
}
# &handle_tests_dejagnu ()
# ------------------------
sub handle_tests_dejagnu
{
push (@check_tests, 'check-DEJAGNU');
$output_rules .= file_contents ('dejagnu', new Automake::Location);
}
# Handle TESTS variable and other checks.
sub handle_tests
{
if (option 'dejagnu')
{
&handle_tests_dejagnu;
}
else
{
foreach my $c ('DEJATOOL', 'RUNTEST', 'RUNTESTFLAGS')
{
reject_var ($c, "`$c' defined but `dejagnu' not in "
. "`AUTOMAKE_OPTIONS'");
}
}
if (var ('TESTS'))
{
push (@check_tests, 'check-TESTS');
$output_rules .= &file_contents ('check', new Automake::Location);
}
}
# Handle Emacs Lisp.
sub handle_emacs_lisp
{
my @elfiles = &am_install_var ('-candist', 'lisp', 'LISP',
'lisp', 'noinst');
return if ! @elfiles;
define_pretty_variable ('am__ELFILES', TRUE, INTERNAL,
map { $_->[1] } @elfiles);
define_pretty_variable ('am__ELCFILES', TRUE, INTERNAL,
'$(am__ELFILES:.el=.elc)');
# This one can be overridden by users.
define_pretty_variable ('ELCFILES', TRUE, INTERNAL, '$(LISP:.el=.elc)');
push @all, '$(ELCFILES)';
require_variables ($elfiles[0][0], "Emacs Lisp sources seen", TRUE,
'EMACS', 'lispdir');
require_conf_file ($elfiles[0][0], FOREIGN, 'elisp-comp');
&define_variable ('elisp_comp', "$am_config_aux_dir/elisp-comp", INTERNAL);
}
# Handle Python
sub handle_python
{
my @pyfiles = &am_install_var ('-defaultdist', 'python', 'PYTHON',
'noinst');
return if ! @pyfiles;
require_variables ($pyfiles[0][0], "Python sources seen", TRUE, 'PYTHON');
require_conf_file ($pyfiles[0][0], FOREIGN, 'py-compile');
&define_variable ('py_compile', "$am_config_aux_dir/py-compile", INTERNAL);
}
# Handle Java.
sub handle_java
{
my @sourcelist = &am_install_var ('-candist',
'java', 'JAVA',
'java', 'noinst', 'check');
return if ! @sourcelist;
my @prefix = am_primary_prefixes ('JAVA', 1,
'java', 'noinst', 'check');
my $dir;
foreach my $curs (@prefix)
{
next
if $curs eq 'EXTRA';
err_var "${curs}_JAVA", "multiple _JAVA primaries in use"
if defined $dir;
$dir = $curs;
}
push (@all, 'class' . $dir . '.stamp');
}
# Handle some of the minor options.
sub handle_minor_options
{
if (option 'readme-alpha')
{
if ($relative_dir eq '.')
{
if ($package_version !~ /^$GNITS_VERSION_PATTERN$/)
{
msg ('error-gnits', $package_version_location,
"version `$package_version' doesn't follow " .
"Gnits standards");
}
if (defined $1 && -f 'README-alpha')
{
# This means we have an alpha release. See
# GNITS_VERSION_PATTERN for details.
push_dist_common ('README-alpha');
}
}
}
}
################################################################
# ($OUTPUT, @INPUTS)
# &split_config_file_spec ($SPEC)
# -------------------------------
# Decode the Autoconf syntax for config files (files, headers, links
# etc.).
sub split_config_file_spec ($)
{
my ($spec) = @_;
my ($output, @inputs) = split (/:/, $spec);
push @inputs, "$output.in"
unless @inputs;
return ($output, @inputs);
}
# $input
# locate_am (@POSSIBLE_SOURCES)
# -----------------------------
# AC_CONFIG_FILES allow specifications such as Makefile:top.in:mid.in:bot.in
# This functions returns the first *.in file for which a *.am exists.
# It returns undef otherwise.
sub locate_am (@)
{
my (@rest) = @_;
my $input;
foreach my $file (@rest)
{
if (($file =~ /^(.*)\.in$/) && -f "$1.am")
{
$input = $file;
last;
}
}
return $input;
}
my %make_list;
# &scan_autoconf_config_files ($WHERE, $CONFIG-FILES)
# ---------------------------------------------------
# Study $CONFIG-FILES which is the first argument to AC_CONFIG_FILES
# (or AC_OUTPUT).
sub scan_autoconf_config_files ($$)
{
my ($where, $config_files) = @_;
# Look at potential Makefile.am's.
foreach (split ' ', $config_files)
{
# Must skip empty string for Perl 4.
next if $_ eq "\\" || $_ eq '';
# Handle $local:$input syntax.
my ($local, @rest) = split (/:/);
@rest = ("$local.in",) unless @rest;
my $input = locate_am @rest;
if ($input)
{
# We have a file that automake should generate.
$make_list{$input} = join (':', ($local, @rest));
}
else
{
# We have a file that automake should cause to be
# rebuilt, but shouldn't generate itself.
push (@other_input_files, $_);
}
$ac_config_files_location{$local} = $where;
}
}
# &scan_autoconf_traces ($FILENAME)
# ---------------------------------
sub scan_autoconf_traces ($)
{
my ($filename) = @_;
# Macros to trace, with their minimal number of arguments.
#
# IMPORTANT: If you add a macro here, you should also add this macro
# ========= to Automake-preselection in autoconf/lib/autom4te.in.
my %traced = (
AC_CANONICAL_BUILD => 0,
AC_CANONICAL_HOST => 0,
AC_CANONICAL_TARGET => 0,
AC_CONFIG_AUX_DIR => 1,
AC_CONFIG_FILES => 1,
AC_CONFIG_HEADERS => 1,
AC_CONFIG_LINKS => 1,
AC_INIT => 0,
AC_LIBSOURCE => 1,
AC_SUBST => 1,
AM_AUTOMAKE_VERSION => 1,
AM_CONDITIONAL => 2,
AM_ENABLE_MULTILIB => 0,
AM_GNU_GETTEXT => 0,
AM_INIT_AUTOMAKE => 0,
AM_MAINTAINER_MODE => 0,
AM_PROG_CC_C_O => 0,
LT_SUPPORTED_TAG => 1,
_LT_AC_TAGCONFIG => 0,
m4_include => 1,
m4_sinclude => 1,
sinclude => 1,
);
my $traces = ($ENV{AUTOCONF} || 'autoconf') . " ";
# Use a separator unlikely to be used, not `:', the default, which
# has a precise meaning for AC_CONFIG_FILES and so on.
$traces .= join (' ',
map { "--trace=$_" . ':\$f:\$l::\$n::\${::}%' }
(keys %traced));
my $tracefh = new Automake::XFile ("$traces $filename |");
verb "reading $traces";
while ($_ = $tracefh->getline)
{
chomp;
my ($here, @args) = split (/::/);
my $where = new Automake::Location $here;
my $macro = $args[0];
prog_error ("unrequested trace `$macro'")
unless exists $traced{$macro};
# Skip and diagnose malformed calls.
if ($#args < $traced{$macro})
{
msg ('syntax', $where, "not enough arguments for $macro");
next;
}
# Alphabetical ordering please.
if ($macro eq 'AC_CANONICAL_BUILD')
{
if ($seen_canonical <= AC_CANONICAL_BUILD)
{
$seen_canonical = AC_CANONICAL_BUILD;
$canonical_location = $where;
}
}
elsif ($macro eq 'AC_CANONICAL_HOST')
{
if ($seen_canonical <= AC_CANONICAL_HOST)
{
$seen_canonical = AC_CANONICAL_HOST;
$canonical_location = $where;
}
}
elsif ($macro eq 'AC_CANONICAL_TARGET')
{
$seen_canonical = AC_CANONICAL_TARGET;
$canonical_location = $where;
}
elsif ($macro eq 'AC_CONFIG_AUX_DIR')
{
if ($seen_init_automake)
{
error ($where, "AC_CONFIG_AUX_DIR must be called before "
. "AM_INIT_AUTOMAKE...", partial => 1);
error ($seen_init_automake, "... AM_INIT_AUTOMAKE called here");
}
$config_aux_dir = $args[1];
$config_aux_dir_set_in_configure_ac = 1;
$relative_dir = '.';
check_directory ($config_aux_dir, $where);
}
elsif ($macro eq 'AC_CONFIG_FILES')
{
# Look at potential Makefile.am's.
scan_autoconf_config_files ($where, $args[1]);
}
elsif ($macro eq 'AC_CONFIG_HEADERS')
{
foreach my $spec (split (' ', $args[1]))
{
my ($dest, @src) = split (':', $spec);
$ac_config_files_location{$dest} = $where;
push @config_headers, $spec;
}
}
elsif ($macro eq 'AC_CONFIG_LINKS')
{
foreach my $spec (split (' ', $args[1]))
{
my ($dest, $src) = split (':', $spec);
$ac_config_files_location{$dest} = $where;
push @config_links, $spec;
}
}
elsif ($macro eq 'AC_INIT')
{
if (defined $args[2])
{
$package_version = $args[2];
$package_version_location = $where;
}
}
elsif ($macro eq 'AC_LIBSOURCE')
{
$libsources{$args[1]} = $here;
}
elsif ($macro eq 'AC_SUBST')
{
# Just check for alphanumeric in AC_SUBST. If you do
# AC_SUBST(5), then too bad.
$configure_vars{$args[1]} = $where
if $args[1] =~ /^\w+$/;
}
elsif ($macro eq 'AM_AUTOMAKE_VERSION')
{
error ($where,
"version mismatch. This is Automake $VERSION,\n" .
"but the definition used by this AM_INIT_AUTOMAKE\n" .
"comes from Automake $args[1]. You should recreate\n" .
"aclocal.m4 with aclocal and run automake again.\n",
# $? = 63 is used to indicate version mismatch to missing.
exit_code => 63)
if $VERSION ne $args[1];
$seen_automake_version = 1;
}
elsif ($macro eq 'AM_CONDITIONAL')
{
$configure_cond{$args[1]} = $where;
}
elsif ($macro eq 'AM_ENABLE_MULTILIB')
{
$seen_multilib = $where;
}
elsif ($macro eq 'AM_GNU_GETTEXT')
{
$seen_gettext = $where;
$ac_gettext_location = $where;
$seen_gettext_external = grep ($_ eq 'external', @args);
}
elsif ($macro eq 'AM_INIT_AUTOMAKE')
{
$seen_init_automake = $where;
if (defined $args[2])
{
$package_version = $args[2];
$package_version_location = $where;
}
elsif (defined $args[1])
{
exit $exit_code
if (process_global_option_list ($where,
split (' ', $args[1])));
}
}
elsif ($macro eq 'AM_MAINTAINER_MODE')
{
$seen_maint_mode = $where;
}
elsif ($macro eq 'AM_PROG_CC_C_O')
{
$seen_cc_c_o = $where;
}
elsif ($macro eq 'm4_include'
|| $macro eq 'm4_sinclude'
|| $macro eq 'sinclude')
{
# Skip missing `sinclude'd files.
next if $macro ne 'm4_include' && ! -f $args[1];
# Some modified versions of Autoconf don't use
# forzen files. Consequently it's possible that we see all
# m4_include's performed during Autoconf's startup.
# Obviously we don't want to distribute Autoconf's files
# so we skip absolute filenames here.
push @configure_deps, '$(top_srcdir)/' . $args[1]
unless $here =~ m,^(?:\w:)?[\\/],;
# Keep track of the greatest timestamp.
if (-e $args[1])
{
my $mtime = mtime $args[1];
$configure_deps_greatest_timestamp = $mtime
if $mtime > $configure_deps_greatest_timestamp;
}
}
elsif ($macro eq 'LT_SUPPORTED_TAG')
{
$libtool_tags{$args[1]} = 1;
}
elsif ($macro eq '_LT_AC_TAGCONFIG')
{
# _LT_AC_TAGCONFIG is an old macro present in Libtool 1.5.
# We use it to detect whether tags are supported. Our
# prefered interface is LT_SUPPORTED_TAG, but it was
# introduced in Libtool 1.6.
if (0 == keys %libtool_tags)
{
# Hardcode the tags supported by Libtool 1.5.
%libtool_tags = (CC => 1, CXX => 1, GCJ => 1, F77 => 1);
}
}
}
$tracefh->close;
}
# &scan_autoconf_files ()
# -----------------------
# Check whether we use `configure.ac' or `configure.in'.
# Scan it (and possibly `aclocal.m4') for interesting things.
# We must scan aclocal.m4 because there might be AC_SUBSTs and such there.
sub scan_autoconf_files ()
{
# Reinitialize libsources here. This isn't really necessary,
# since we currently assume there is only one configure.ac. But
# that won't always be the case.
%libsources = ();
# Keep track of the youngest configure dependency.
$configure_deps_greatest_timestamp = mtime $configure_ac;
if (-e 'aclocal.m4')
{
my $mtime = mtime 'aclocal.m4';
$configure_deps_greatest_timestamp = $mtime
if $mtime > $configure_deps_greatest_timestamp;
}
scan_autoconf_traces ($configure_ac);
@configure_input_files = sort keys %make_list;
# Set input and output files if not specified by user.
if (! @input_files)
{
@input_files = @configure_input_files;
%output_files = %make_list;
}
if (! $seen_init_automake)
{
err_ac ("no proper invocation of AM_INIT_AUTOMAKE was found.\nYou "
. "should verify that $configure_ac invokes AM_INIT_AUTOMAKE,"
. "\nthat aclocal.m4 is present in the top-level directory,\n"
. "and that aclocal.m4 was recently regenerated "
. "(using aclocal).");
}
else
{
if (! $seen_automake_version)
{
if (-f 'aclocal.m4')
{
error ($seen_init_automake,
"your implementation of AM_INIT_AUTOMAKE comes from " .
"an\nold Automake version. You should recreate " .
"aclocal.m4\nwith aclocal and run automake again.\n",
# $? = 63 is used to indicate version mismatch to missing.
exit_code => 63);
}
else
{
error ($seen_init_automake,
"no proper implementation of AM_INIT_AUTOMAKE was " .
"found,\nprobably because aclocal.m4 is missing...\n" .
"You should run aclocal to create this file, then\n" .
"run automake again.\n");
}
}
}
locate_aux_dir ();
# Reorder @input_files so that the Makefile that distributes aux
# files is processed last. This is important because each directory
# can require auxiliary scripts and we should wait until they have
# been installed before distributing them.
# The Makefile.in that distribute the aux files is the one in
# $config_aux_dir or the top-level Makefile.
my $auxdirdist = is_make_dir ($config_aux_dir) ? $config_aux_dir : '.';
my @new_input_files = ();
while (@input_files)
{
my $in = pop @input_files;
my @ins = split (/:/, $output_files{$in});
if (dirname ($ins[0]) eq $auxdirdist)
{
push @new_input_files, $in;
$automake_will_process_aux_dir = 1;
}
else
{
unshift @new_input_files, $in;
}
}
@input_files = @new_input_files;
# If neither the auxdir/Makefile nor the ./Makefile are generated
# by Automake, we won't distribute the aux files anyway. Assume
# the user know what (s)he does, and pretend we will distribute
# them to disable the error in require_file_internal.
$automake_will_process_aux_dir = 1 if ! is_make_dir ($auxdirdist);
# Look for some files we need. Always check for these. This
# check must be done for every run, even those where we are only
# looking at a subdir Makefile. We must set relative_dir for
# maybe_push_required_file to work.
$relative_dir = '.';
require_conf_file ($configure_ac, FOREIGN, 'install-sh', 'missing');
err_am "`install.sh' is an anachronism; use `install-sh' instead"
if -f $config_aux_dir . '/install.sh';
# Preserve dist_common for later.
$configure_dist_common = variable_value ('DIST_COMMON') || '';
}
################################################################
# Set up for Cygnus mode.
sub check_cygnus
{
my $cygnus = option 'cygnus';
return unless $cygnus;
set_strictness ('foreign');
set_option ('no-installinfo', $cygnus);
set_option ('no-dependencies', $cygnus);
set_option ('no-dist', $cygnus);
err_ac "`AM_MAINTAINER_MODE' required when --cygnus specified"
if !$seen_maint_mode;
}
# Do any extra checking for GNU standards.
sub check_gnu_standards
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
require_file ("$am_file.am", GNU,
qw/INSTALL NEWS README AUTHORS ChangeLog/);
# Accept one of these three licenses; default to COPYING.
# Make sure we do not overwrite an existing license.
my $license;
foreach (qw /COPYING COPYING.LIB COPYING.LESSER/)
{
if (-f $_)
{
$license = $_;
last;
}
}
require_file ("$am_file.am", GNU, 'COPYING')
unless $license;
}
for my $opt ('no-installman', 'no-installinfo')
{
msg ('error-gnu', option $opt,
"option `$opt' disallowed by GNU standards")
if option $opt;
}
}
# Do any extra checking for GNITS standards.
sub check_gnits_standards
{
if ($relative_dir eq '.')
{
# In top level (or only) directory.
require_file ("$am_file.am", GNITS, 'THANKS');
}
}
################################################################
#
# Functions to handle files of each language.
# Each `lang_X_rewrite($DIRECTORY, $BASE, $EXT)' function follows a
# simple formula: Return value is LANG_SUBDIR if the resulting object
# file should be in a subdir if the source file is, LANG_PROCESS if
# file is to be dealt with, LANG_IGNORE otherwise.
# Much of the actual processing is handled in
# handle_single_transform. These functions exist so that
# auxiliary information can be recorded for a later cleanup pass.
# Note that the calls to these functions are computed, so don't bother
# searching for their precise names in the source.
# This is just a convenience function that can be used to determine
# when a subdir object should be used.
sub lang_sub_obj
{
return option 'subdir-objects' ? LANG_SUBDIR : LANG_PROCESS;
}
# Rewrite a single C source file.
sub lang_c_rewrite
{
my ($directory, $base, $ext) = @_;
if (option 'ansi2knr' && $base =~ /_$/)
{
# FIXME: include line number in error.
err_am "C source file `$base.c' would be deleted by ansi2knr rules";
}
my $r = LANG_PROCESS;
if (option 'subdir-objects')
{
$r = LANG_SUBDIR;
$base = $directory . '/' . $base
unless $directory eq '.' || $directory eq '';
err_am ("C objects in subdir but `AM_PROG_CC_C_O' "
. "not in `$configure_ac'",
uniq_scope => US_GLOBAL)
unless $seen_cc_c_o;
require_conf_file ("$am_file.am", FOREIGN, 'compile');
# In this case we already have the directory information, so
# don't add it again.
$de_ansi_files{$base} = '';
}
else
{
$de_ansi_files{$base} = (($directory eq '.' || $directory eq '')
? ''
: "$directory/");
}
return $r;
}
# Rewrite a single C++ source file.
sub lang_cxx_rewrite
{
return &lang_sub_obj;
}
# Rewrite a single header file.
sub lang_header_rewrite
{
# Header files are simply ignored.
return LANG_IGNORE;
}
# Rewrite a single yacc file.
sub lang_yacc_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = &lang_sub_obj;
(my $newext = $ext) =~ tr/y/c/;
return ($r, $newext);
}
# Rewrite a single yacc++ file.
sub lang_yaccxx_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = &lang_sub_obj;
(my $newext = $ext) =~ tr/y/c/;
return ($r, $newext);
}
# Rewrite a single lex file.
sub lang_lex_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = &lang_sub_obj;
(my $newext = $ext) =~ tr/l/c/;
return ($r, $newext);
}
# Rewrite a single lex++ file.
sub lang_lexxx_rewrite
{
my ($directory, $base, $ext) = @_;
my $r = &lang_sub_obj;
(my $newext = $ext) =~ tr/l/c/;
return ($r, $newext);
}
# Rewrite a single assembly file.
sub lang_asm_rewrite
{
return &lang_sub_obj;
}
# Rewrite a single Fortran 77 file.
sub lang_f77_rewrite
{
return LANG_PROCESS;
}
# Rewrite a single Fortran file.
sub lang_fc_rewrite
{
return LANG_PROCESS;
}
# Rewrite a single preprocessed Fortran file.
sub lang_ppfc_rewrite
{
return LANG_PROCESS;
}
# Rewrite a single preprocessed Fortran 77 file.
sub lang_ppf77_rewrite
{
return LANG_PROCESS;
}
# Rewrite a single ratfor file.
sub lang_ratfor_rewrite
{
return LANG_PROCESS;
}
# Rewrite a single Objective C file.
sub lang_objc_rewrite
{
return &lang_sub_obj;
}
# Rewrite a single Java file.
sub lang_java_rewrite
{
return LANG_SUBDIR;
}
# The lang_X_finish functions are called after all source file
# processing is done. Each should handle defining rules for the
# language, etc. A finish function is only called if a source file of
# the appropriate type has been seen.
sub lang_c_finish
{
# Push all libobjs files onto de_ansi_files. We actually only
# push files which exist in the current directory, and which are
# genuine source files.
foreach my $file (keys %libsources)
{
if ($file =~ /^(.*)\.[cly]$/ && -f "$relative_dir/$file")
{
$de_ansi_files{$1} = ''
}
}
if (option 'ansi2knr' && keys %de_ansi_files)
{
# Make all _.c files depend on their corresponding .c files.
my @objects;
foreach my $base (sort keys %de_ansi_files)
{
# Each _.c file must depend on ansi2knr; otherwise it
# might be used in a parallel build before it is built.
# We need to support files in the srcdir and in the build
# dir (because these files might be auto-generated. But
# we can't use $< -- some makes only define $< during a
# suffix rule.
my $ansfile = $de_ansi_files{$base} . $base . '.c';
$output_rules .= ($base . "_.c: $ansfile \$(ANSI2KNR)\n\t"
. '$(CPP) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) '
. '`if test -f $(srcdir)/' . $ansfile
. '; then echo $(srcdir)/' . $ansfile
. '; else echo ' . $ansfile . '; fi` '
. "| sed 's/^# \\([0-9]\\)/#line \\1/' "
. '| $(ANSI2KNR) > $@'
# If ansi2knr fails then we shouldn't
# create the _.c file
. " || rm -f \$\@\n");
push (@objects, $base . '_.$(OBJEXT)');
push (@objects, $base . '_.lo')
if var ('LIBTOOL');
# Explicitly clean the _.c files if they are in a
# subdirectory. (In the current directory they get erased
# by a `rm -f *_.c' rule.)
$clean_files{$base . '_.c'} = MOSTLY_CLEAN
if dirname ($base) ne '.';
}
# Make all _.o (and _.lo) files depend on ansi2knr.
# Use a sneaky little hack to make it print nicely.
&pretty_print_rule ('', '', @objects, ':', '$(ANSI2KNR)');
}
}
# This is a yacc helper which is called whenever we have decided to
# compile a yacc file.
sub lang_yacc_target_hook
{
my ($self, $aggregate, $output, $input, %transform) = @_;
my $flag = $aggregate . "_YFLAGS";
my $flagvar = var $flag;
my $YFLAGSvar = var 'YFLAGS';
if (($flagvar && $flagvar->variable_value =~ /$DASH_D_PATTERN/o)
|| ($YFLAGSvar && $YFLAGSvar->variable_value =~ /$DASH_D_PATTERN/o))
{
(my $output_base = $output) =~ s/$KNOWN_EXTENSIONS_PATTERN$//;
my $header = $output_base . '.h';
# Found a `-d' that applies to the compilation of this file.
# Add a dependency for the generated header file, and arrange
# for that file to be included in the distribution.
foreach my $cond (Automake::Rule::define (${header}, 'internal',
RULE_AUTOMAKE, TRUE,
INTERNAL))
{
my $condstr = $cond->subst_string;
$output_rules .= ("$condstr${header}: $output\n"
# Recover from removal of $header
. "$condstr\t\@if test ! -f \$@; then \\\n"
. "$condstr\t rm -f $output; \\\n"
. "$condstr\t \$(MAKE) $output; \\\n"
. "$condstr\telse :; fi\n");
}
# Distribute the generated file, unless its .y source was
# listed in a nodist_ variable. (&handle_source_transform
# will set DIST_SOURCE.)
&push_dist_common ($header)
if $transform{'DIST_SOURCE'};
# If the files are built in the build directory, then we want
# to remove them with `make clean'. If they are in srcdir
# they shouldn't be touched. However, we can't determine this
# statically, and the GNU rules say that yacc/lex output files
# should be removed by maintainer-clean. So that's what we
# do.
$clean_files{$header} = MAINTAINER_CLEAN;
}
# Erase $OUTPUT on `make maintainer-clean' (by GNU standards).
# See the comment above for $HEADER.
$clean_files{$output} = MAINTAINER_CLEAN;
}
# This is a lex helper which is called whenever we have decided to
# compile a lex file.
sub lang_lex_target_hook
{
my ($self, $aggregate, $output, $input) = @_;
# If the files are built in the build directory, then we want to
# remove them with `make clean'. If they are in srcdir they
# shouldn't be touched. However, we can't determine this
# statically, and the GNU rules say that yacc/lex output files
# should be removed by maintainer-clean. So that's what we do.
$clean_files{$output} = MAINTAINER_CLEAN;
}
# This is a helper for both lex and yacc.
sub yacc_lex_finish_helper
{
return if defined $language_scratch{'lex-yacc-done'};
$language_scratch{'lex-yacc-done'} = 1;
# If there is more than one distinct yacc (resp lex) source file
# in a given directory, then the `ylwrap' program is required to
# allow parallel builds to work correctly. FIXME: for now, no
# line number.
require_conf_file ($configure_ac, FOREIGN, 'ylwrap');
&define_variable ('YLWRAP', "$am_config_aux_dir/ylwrap", INTERNAL);
}
sub lang_yacc_finish
{
return if defined $language_scratch{'yacc-done'};
$language_scratch{'yacc-done'} = 1;
reject_var 'YACCFLAGS', "`YACCFLAGS' obsolete; use `YFLAGS' instead";
&yacc_lex_finish_helper
if count_files_for_language ('yacc') > 1;
}
sub lang_lex_finish
{
return if defined $language_scratch{'lex-done'};
$language_scratch{'lex-done'} = 1;
&yacc_lex_finish_helper
if count_files_for_language ('lex') > 1;
}
# Given a hash table of linker names, pick the name that has the most
# precedence. This is lame, but something has to have global
# knowledge in order to eliminate the conflict. Add more linkers as
# required.
sub resolve_linker
{
my (%linkers) = @_;
foreach my $l (qw(GCJLINK CXXLINK F77LINK FCLINK OBJCLINK))
{
return $l if defined $linkers{$l};
}
return 'LINK';
}
# Called to indicate that an extension was used.
sub saw_extension
{
my ($ext) = @_;
if (! defined $extension_seen{$ext})
{
$extension_seen{$ext} = 1;
}
else
{
++$extension_seen{$ext};
}
}
# Return the number of files seen for a given language. Knows about
# special cases we care about. FIXME: this is hideous. We need
# something that involves real language objects. For instance yacc
# and yaccxx could both derive from a common yacc class which would
# know about the strange ylwrap requirement. (Or better yet we could
# just not support legacy yacc!)
sub count_files_for_language
{
my ($name) = @_;
my @names;
if ($name eq 'yacc' || $name eq 'yaccxx')
{
@names = ('yacc', 'yaccxx');
}
elsif ($name eq 'lex' || $name eq 'lexxx')
{
@names = ('lex', 'lexxx');
}
else
{
@names = ($name);
}
my $r = 0;
foreach $name (@names)
{
my $lang = $languages{$name};
foreach my $ext (@{$lang->extensions})
{
$r += $extension_seen{$ext}
if defined $extension_seen{$ext};
}
}
return $r
}
# Called to ask whether source files have been seen . If HEADERS is 1,
# headers can be included.
sub saw_sources_p
{
my ($headers) = @_;
# count all the sources
my $count = 0;
foreach my $val (values %extension_seen)
{
$count += $val;
}
if (!$headers)
{
$count -= count_files_for_language ('header');
}
return $count > 0;
}
# register_language (%ATTRIBUTE)
# ------------------------------
# Register a single language.
# Each %ATTRIBUTE is of the form ATTRIBUTE => VALUE.
sub register_language (%)
{
my (%option) = @_;
# Set the defaults.
$option{'ansi'} = 0
unless defined $option{'ansi'};
$option{'autodep'} = 'no'
unless defined $option{'autodep'};
$option{'linker'} = ''
unless defined $option{'linker'};
$option{'flags'} = []
unless defined $option{'flags'};
$option{'output_extensions'} = sub { return ( '.$(OBJEXT)', '.lo' ) }
unless defined $option{'output_extensions'};
my $lang = new Language (%option);
# Fill indexes.
$extension_map{$_} = $lang->name foreach @{$lang->extensions};
$languages{$lang->name} = $lang;
# Update the pattern of known extensions.
accept_extensions (@{$lang->extensions});
# Upate the $suffix_rule map.
foreach my $suffix (@{$lang->extensions})
{
foreach my $dest (&{$lang->output_extensions} ($suffix))
{
register_suffix_rule (INTERNAL, $suffix, $dest);
}
}
}
# derive_suffix ($EXT, $OBJ)
# --------------------------
# This function is used to find a path from a user-specified suffix $EXT
# to $OBJ or to some other suffix we recognize internally, e.g. `cc'.
sub derive_suffix ($$)
{
my ($source_ext, $obj) = @_;
while (! $extension_map{$source_ext}
&& $source_ext ne $obj
&& exists $suffix_rules->{$source_ext}
&& exists $suffix_rules->{$source_ext}{$obj})
{
$source_ext = $suffix_rules->{$source_ext}{$obj}[0];
}
return $source_ext;
}
################################################################
# Pretty-print something and append to output_rules.
sub pretty_print_rule
{
$output_rules .= &makefile_wrap (@_);
}
################################################################
## -------------------------------- ##
## Handling the conditional stack. ##
## -------------------------------- ##
# $STRING
# make_conditional_string ($NEGATE, $COND)
# ----------------------------------------
sub make_conditional_string ($$)
{
my ($negate, $cond) = @_;
$cond = "${cond}_TRUE"
unless $cond =~ /^TRUE|FALSE$/;
$cond = Automake::Condition::conditional_negate ($cond)
if $negate;
return $cond;
}
# $COND
# cond_stack_if ($NEGATE, $COND, $WHERE)
# --------------------------------------
sub cond_stack_if ($$$)
{
my ($negate, $cond, $where) = @_;
error $where, "$cond does not appear in AM_CONDITIONAL"
if ! $configure_cond{$cond} && $cond !~ /^TRUE|FALSE$/;
push (@cond_stack, make_conditional_string ($negate, $cond));
return new Automake::Condition (@cond_stack);
}
# $COND
# cond_stack_else ($NEGATE, $COND, $WHERE)
# ----------------------------------------
sub cond_stack_else ($$$)
{
my ($negate, $cond, $where) = @_;
if (! @cond_stack)
{
error $where, "else without if";
return FALSE;
}
$cond_stack[$#cond_stack] =
Automake::Condition::conditional_negate ($cond_stack[$#cond_stack]);
# If $COND is given, check against it.
if (defined $cond)
{
$cond = make_conditional_string ($negate, $cond);
error ($where, "else reminder ($negate$cond) incompatible with "
. "current conditional: $cond_stack[$#cond_stack]")
if $cond_stack[$#cond_stack] ne $cond;
}
return new Automake::Condition (@cond_stack);
}
# $COND
# cond_stack_endif ($NEGATE, $COND, $WHERE)
# -----------------------------------------
sub cond_stack_endif ($$$)
{
my ($negate, $cond, $where) = @_;
my $old_cond;
if (! @cond_stack)
{
error $where, "endif without if";
return TRUE;
}
# If $COND is given, check against it.
if (defined $cond)
{
$cond = make_conditional_string ($negate, $cond);
error ($where, "endif reminder ($negate$cond) incompatible with "
. "current conditional: $cond_stack[$#cond_stack]")
if $cond_stack[$#cond_stack] ne $cond;
}
pop @cond_stack;
return new Automake::Condition (@cond_stack);
}
## ------------------------ ##
## Handling the variables. ##
## ------------------------ ##
# &define_pretty_variable ($VAR, $COND, $WHERE, @VALUE)
# -----------------------------------------------------
# Like define_variable, but the value is a list, and the variable may
# be defined conditionally. The second argument is the Condition
# under which the value should be defined; this should be the empty
# string to define the variable unconditionally. The third argument
# is a list holding the values to use for the variable. The value is
# pretty printed in the output file.
sub define_pretty_variable ($$$@)
{
my ($var, $cond, $where, @value) = @_;
if (! vardef ($var, $cond))
{
Automake::Variable::define ($var, VAR_AUTOMAKE, '', $cond, "@value",
'', $where, VAR_PRETTY);
rvar ($var)->rdef ($cond)->set_seen;
}
}
# define_variable ($VAR, $VALUE, $WHERE)
# --------------------------------------
# Define a new user variable VAR to VALUE, but only if not already defined.
sub define_variable ($$$)
{
my ($var, $value, $where) = @_;
define_pretty_variable ($var, TRUE, $where, $value);
}
# define_files_variable ($VAR, \@BASENAME, $EXTENSION, $WHERE)
# -----------------------------------------------------------
# Define the $VAR which content is the list of file names composed of
# a @BASENAME and the $EXTENSION.
sub define_files_variable ($\@$$)
{
my ($var, $basename, $extension, $where) = @_;
define_variable ($var,
join (' ', map { "$_.$extension" } @$basename),
$where);
}
# Like define_variable, but define a variable to be the configure
# substitution by the same name.
sub define_configure_variable ($)
{
my ($var) = @_;
my $pretty = VAR_ASIS;
my $owner = VAR_CONFIGURE;
# Do not output the ANSI2KNR configure variable -- we AC_SUBST
# it in protos.m4, but later redefine it elsewhere. This is
# pretty hacky. We also don't output AMDEPBACKSLASH: it might
# be subst'd by `\', which certainly would not be appreciated by
# Make.
if ($var eq 'ANSI2KNR' || $var eq 'AMDEPBACKSLASH')
{
$pretty = VAR_SILENT;
$owner = VAR_AUTOMAKE;
}
Automake::Variable::define ($var, $owner, '', TRUE, subst $var,
'', $configure_vars{$var}, $pretty);
}
# define_compiler_variable ($LANG)
# --------------------------------
# Define a compiler variable. We also handle defining the `LT'
# version of the command when using libtool.
sub define_compiler_variable ($)
{
my ($lang) = @_;
my ($var, $value) = ($lang->compiler, $lang->compile);
my $libtool_tag = '';
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
&define_variable ($var, $value, INTERNAL);
&define_variable ("LT$var",
"\$(LIBTOOL) $libtool_tag--mode=compile $value",
INTERNAL)
if var ('LIBTOOL');
}
# define_linker_variable ($LANG)
# ------------------------------
# Define linker variables.
sub define_linker_variable ($)
{
my ($lang) = @_;
my ($var, $value) = ($lang->lder, $lang->ld);
my $libtool_tag = '';
$libtool_tag = '--tag=' . $lang->libtool_tag . ' '
if $lang->libtool_tag && exists $libtool_tags{$lang->libtool_tag};
# CCLD = $(CC).
&define_variable ($lang->lder, $lang->ld, INTERNAL);
# CCLINK = $(CCLD) blah blah...
&define_variable ($lang->linker,
((var ('LIBTOOL') ?
"\$(LIBTOOL) $libtool_tag--mode=link " : '')
. $lang->link),
INTERNAL);
}
################################################################
# &check_trailing_slash ($WHERE, $LINE)
# --------------------------------------
# Return 1 iff $LINE ends with a slash.
# Might modify $LINE.
sub check_trailing_slash ($\$)
{
my ($where, $line) = @_;
# Ignore `##' lines.
return 0 if $$line =~ /$IGNORE_PATTERN/o;
# Catch and fix a common error.
msg "syntax", $where, "whitespace following trailing backslash"
if $$line =~ s/\\\s+\n$/\\\n/;
return $$line =~ /\\$/;
}
# &read_am_file ($AMFILE, $WHERE)
# -------------------------------
# Read Makefile.am and set up %contents. Simultaneously copy lines
# from Makefile.am into $output_trailer, or define variables as
# appropriate. NOTE we put rules in the trailer section. We want
# user rules to come after our generated stuff.
sub read_am_file ($$)
{
my ($amfile, $where) = @_;
my $am_file = new Automake::XFile ("< $amfile");
verb "reading $amfile";
# Keep track of the youngest output dependency.
my $mtime = mtime $amfile;
$output_deps_greatest_timestamp = $mtime
if $mtime > $output_deps_greatest_timestamp;
my $spacing = '';
my $comment = '';
my $blank = 0;
my $saw_bk = 0;
my $var_look = VAR_ASIS;
use constant IN_VAR_DEF => 0;
use constant IN_RULE_DEF => 1;
use constant IN_COMMENT => 2;
my $prev_state = IN_RULE_DEF;
while ($_ = $am_file->getline)
{
$where->set ("$amfile:$.");
if (/$IGNORE_PATTERN/o)
{
# Merely delete comments beginning with two hashes.
}
elsif (/$WHITE_PATTERN/o)
{
error $where, "blank line following trailing backslash"
if $saw_bk;
# Stick a single white line before the incoming macro or rule.
$spacing = "\n";
$blank = 1;
# Flush all comments seen so far.
if ($comment ne '')
{
$output_vars .= $comment;
$comment = '';
}
}
elsif (/$COMMENT_PATTERN/o)
{
# Stick comments before the incoming macro or rule. Make
# sure a blank line precedes the first block of comments.
$spacing = "\n" unless $blank;
$blank = 1;
$comment .= $spacing . $_;
$spacing = '';
$prev_state = IN_COMMENT;
}
else
{
last;
}
$saw_bk = check_trailing_slash ($where, $_);
}
# We save the conditional stack on entry, and then check to make
# sure it is the same on exit. This lets us conditionally include
# other files.
my @saved_cond_stack = @cond_stack;
my $cond = new Automake::Condition (@cond_stack);
my $last_var_name = '';
my $last_var_type = '';
my $last_var_value = '';
my $last_where;
# FIXME: shouldn't use $_ in this loop; it is too big.
while ($_)
{
$where->set ("$amfile:$.");
# Make sure the line is \n-terminated.
chomp;
$_ .= "\n";
# Don't look at MAINTAINER_MODE_TRUE here. That shouldn't be
# used by users. @MAINT@ is an anachronism now.
$_ =~ s/\@MAINT\@//g
unless $seen_maint_mode;
my $new_saw_bk = check_trailing_slash ($where, $_);
if (/$IGNORE_PATTERN/o)
{
# Merely delete comments beginning with two hashes.
# Keep any backslash from the previous line.
$new_saw_bk = $saw_bk;
}
elsif (/$WHITE_PATTERN/o)
{
# Stick a single white line before the incoming macro or rule.
$spacing = "\n";
error $where, "blank line following trailing backslash"
if $saw_bk;
}
elsif (/$COMMENT_PATTERN/o)
{
error $where, "comment following trailing backslash"
if $saw_bk && $comment eq '';
# Stick comments before the incoming macro or rule.
$comment .= $spacing . $_;
$spacing = '';
$prev_state = IN_COMMENT;
}
elsif ($saw_bk)
{
if ($prev_state == IN_RULE_DEF)
{
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
}
elsif ($prev_state == IN_COMMENT)
{
# If the line doesn't start with a `#', add it.
# We do this because a continued comment like
# # A = foo \
# bar \
# baz
# is not portable. BSD make doesn't honor
# escaped newlines in comments.
s/^#?/#/;
$comment .= $spacing . $_;
}
else # $prev_state == IN_VAR_DEF
{
$last_var_value .= ' '
unless $last_var_value =~ /\s$/;
$last_var_value .= $_;
if (!/\\$/)
{
Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
$last_var_type, $cond,
$last_var_value, $comment,
$last_where, VAR_ASIS)
if $cond != FALSE;
$comment = $spacing = '';
}
}
}
elsif (/$IF_PATTERN/o)
{
$cond = cond_stack_if ($1, $2, $where);
}
elsif (/$ELSE_PATTERN/o)
{
$cond = cond_stack_else ($1, $2, $where);
}
elsif (/$ENDIF_PATTERN/o)
{
$cond = cond_stack_endif ($1, $2, $where);
}
elsif (/$RULE_PATTERN/o)
{
# Found a rule.
$prev_state = IN_RULE_DEF;
# For now we have to output all definitions of user rules
# and can't diagnose duplicates (see the comment in
# rule_define). So we go on and ignore the return value.
Automake::Rule::define ($1, $amfile, RULE_USER, $cond, $where);
check_variable_expansions ($_, $where);
$output_trailer .= $comment . $spacing;
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
$comment = $spacing = '';
}
elsif (/$ASSIGNMENT_PATTERN/o)
{
# Found a macro definition.
$prev_state = IN_VAR_DEF;
$last_var_name = $1;
$last_var_type = $2;
$last_var_value = $3;
$last_where = $where->clone;
if ($3 ne '' && substr ($3, -1) eq "\\")
{
# We preserve the `\' because otherwise the long lines
# that are generated will be truncated by broken
# `sed's.
$last_var_value = $3 . "\n";
}
# Normally we try to output variable definitions in the
# same format they were input. However, POSIX compliant
# systems are not required to support lines longer than
# 2048 bytes (most notably, some sed implementation are
# limited to 4000 bytes, and sed is used by config.status
# to rewrite Makefile.in into Makefile). Moreover nobody
# would really write such long lines by hand since it is
# hardly maintainable. So if a line is longer that 1000
# bytes (an arbitrary limit), assume it has been
# automatically generated by some tools, and flatten the
# variable definition. Otherwise, keep the variable as it
# as been input.
$var_look = VAR_PRETTY if length ($last_var_value) >= 1000;
if (!/\\$/)
{
Automake::Variable::define ($last_var_name, VAR_MAKEFILE,
$last_var_type, $cond,
$last_var_value, $comment,
$last_where, $var_look)
if $cond != FALSE;
$comment = $spacing = '';
$var_look = VAR_ASIS;
}
}
elsif (/$INCLUDE_PATTERN/o)
{
my $path = $1;
if ($path =~ s/^\$\(top_srcdir\)\///)
{
push (@include_stack, "\$\(top_srcdir\)/$path");
# Distribute any included file.
# Always use the $(top_srcdir) prefix in DIST_COMMON,
# otherwise OSF make will implicitly copy the included
# file in the build tree during `make distdir' to satisfy
# the dependency.
# (subdircond2.test and subdircond3.test will fail.)
push_dist_common ("\$\(top_srcdir\)/$path");
}
else
{
$path =~ s/\$\(srcdir\)\///;
push (@include_stack, "\$\(srcdir\)/$path");
# Always use the $(srcdir) prefix in DIST_COMMON,
# otherwise OSF make will implicitly copy the included
# file in the build tree during `make distdir' to satisfy
# the dependency.
# (subdircond2.test and subdircond3.test will fail.)
push_dist_common ("\$\(srcdir\)/$path");
$path = $relative_dir . "/" . $path if $relative_dir ne '.';
}
$where->push_context ("`$path' included from here");
&read_am_file ($path, $where);
$where->pop_context;
}
else
{
# This isn't an error; it is probably a continued rule.
# In fact, this is what we assume.
$prev_state = IN_RULE_DEF;
check_variable_expansions ($_, $where);
$output_trailer .= $comment . $spacing;
my $cond = new Automake::Condition @cond_stack;
$output_trailer .= $cond->subst_string;
$output_trailer .= $_;
$comment = $spacing = '';
error $where, "`#' comment at start of rule is unportable"
if $_ =~ /^\t\s*\#/;
}
$saw_bk = $new_saw_bk;
$_ = $am_file->getline;
}
$output_trailer .= $comment;
error ($where, "trailing backslash on last line")
if $saw_bk;
error ($where, (@cond_stack ? "unterminated conditionals: @cond_stack"
: "too many conditionals closed in include file"))
if "@saved_cond_stack" ne "@cond_stack";
}
# define_standard_variables ()
# ----------------------------
# A helper for read_main_am_file which initializes configure variables
# and variables from header-vars.am.
sub define_standard_variables
{
my $saved_output_vars = $output_vars;
my ($comments, undef, $rules) =
file_contents_internal (1, "$libdir/am/header-vars.am",
new Automake::Location);
foreach my $var (sort keys %configure_vars)
{
&define_configure_variable ($var);
}
$output_vars .= $comments . $rules;
}
# Read main am file.
sub read_main_am_file
{
my ($amfile) = @_;
# This supports the strange variable tricks we are about to play.
prog_error (macros_dump () . "variable defined before read_main_am_file")
if (scalar (variables) > 0);
# Generate copyright header for generated Makefile.in.
# We do discard the output of predefined variables, handled below.
$output_vars = ("# $in_file_name generated by automake "
. $VERSION . " from $am_file_name.\n");
$output_vars .= '# ' . subst ('configure_input') . "\n";
$output_vars .= $gen_copyright;
# We want to predefine as many variables as possible. This lets
# the user set them with `+=' in Makefile.am.
&define_standard_variables;
# Read user file, which might override some of our values.
&read_am_file ($amfile, new Automake::Location);
}
################################################################
# $FLATTENED
# &flatten ($STRING)
# ------------------
# Flatten the $STRING and return the result.
sub flatten
{
$_ = shift;
s/\\\n//somg;
s/\s+/ /g;
s/^ //;
s/ $//;
return $_;
}
# @PARAGRAPHS
# &make_paragraphs ($MAKEFILE, [%TRANSFORM])
# ------------------------------------------
# Load a $MAKEFILE, apply the %TRANSFORM, and return it as a list of
# paragraphs.
sub make_paragraphs ($%)
{
my ($file, %transform) = @_;
# Complete %transform with global options and make it a Perl $command.
# Note that %transform goes last, so it overrides global options.
my $command =
"s/$IGNORE_PATTERN//gm;"
. transform ('CYGNUS' => !! option 'cygnus',
'MAINTAINER-MODE'
=> $seen_maint_mode ? subst ('MAINTAINER_MODE_TRUE') : '',
'BZIP2' => !! option 'dist-bzip2',
'COMPRESS' => !! option 'dist-tarZ',
'GZIP' => ! option 'no-dist-gzip',
'SHAR' => !! option 'dist-shar',
'ZIP' => !! option 'dist-zip',
'INSTALL-INFO' => ! option 'no-installinfo',
'INSTALL-MAN' => ! option 'no-installman',
'CK-NEWS' => !! option 'check-news',
'SUBDIRS' => !! var ('SUBDIRS'),
'TOPDIR' => backname ($relative_dir),
'TOPDIR_P' => $relative_dir eq '.',
'BUILD' => ($seen_canonical >= AC_CANONICAL_BUILD),
'HOST' => ($seen_canonical >= AC_CANONICAL_HOST),
'TARGET' => ($seen_canonical >= AC_CANONICAL_TARGET),
'LIBTOOL' => !! var ('LIBTOOL'),
'NONLIBTOOL' => 1,
'FIRST' => ! $transformed_files{$file},
%transform)
# We don't need more than two consecutive new-lines.
. 's/\n{3,}/\n\n/g';
$transformed_files{$file} = 1;
# Swallow the file and apply the COMMAND.
my $fc_file = new Automake::XFile "< $file";
# Looks stupid?
verb "reading $file";
my $saved_dollar_slash = $/;
undef $/;
$_ = $fc_file->getline;
$/ = $saved_dollar_slash;
eval $command;
$fc_file->close;
my $content = $_;
# Split at unescaped new lines.
my @lines = split (/(?<!\\)\n/, $content);
my @res;
while (defined ($_ = shift @lines))
{
my $paragraph = "$_";
# If we are a rule, eat as long as we start with a tab.
if (/$RULE_PATTERN/smo)
{
while (defined ($_ = shift @lines) && $_ =~ /^\t/)
{
$paragraph .= "\n$_";
}
unshift (@lines, $_);
}
# If we are a comments, eat as much comments as you can.
elsif (/$COMMENT_PATTERN/smo)
{
while (defined ($_ = shift @lines)
&& $_ =~ /$COMMENT_PATTERN/smo)
{
$paragraph .= "\n$_";
}
unshift (@lines, $_);
}
push @res, $paragraph;
$paragraph = '';
}
return @res;
}
# ($COMMENT, $VARIABLES, $RULES)
# &file_contents_internal ($IS_AM, $FILE, $WHERE, [%TRANSFORM])
# -------------------------------------------------------------
# Return contents of a file from $libdir/am, automatically skipping
# macros or rules which are already known. $IS_AM iff the caller is
# reading an Automake file (as opposed to the user's Makefile.am).
sub file_contents_internal ($$$%)
{
my ($is_am, $file, $where, %transform) = @_;
$where->set ($file);
my $result_vars = '';
my $result_rules = '';
my $comment = '';
my $spacing = '';
# The following flags are used to track rules spanning across
# multiple paragraphs.
my $is_rule = 0; # 1 if we are processing a rule.
my $discard_rule = 0; # 1 if the current rule should not be output.
# We save the conditional stack on entry, and then check to make
# sure it is the same on exit. This lets us conditionally include
# other files.
my @saved_cond_stack = @cond_stack;
my $cond = new Automake::Condition (@cond_stack);
foreach (make_paragraphs ($file, %transform))
{
# FIXME: no line number available.
$where->set ($file);
# Sanity checks.
error $where, "blank line following trailing backslash:\n$_"
if /\\$/;
error $where, "comment following trailing backslash:\n$_"
if /\\#/;
if (/^$/)
{
$is_rule = 0;
# Stick empty line before the incoming macro or rule.
$spacing = "\n";
}
elsif (/$COMMENT_PATTERN/mso)
{
$is_rule = 0;
# Stick comments before the incoming macro or rule.
$comment = "$_\n";
}
# Handle inclusion of other files.
elsif (/$INCLUDE_PATTERN/o)
{
if ($cond != FALSE)
{
my $file = ($is_am ? "$libdir/am/" : '') . $1;
$where->push_context ("`$file' included from here");
# N-ary `.=' fails.
my ($com, $vars, $rules)
= file_contents_internal ($is_am, $file, $where, %transform);
$where->pop_context;
$comment .= $com;
$result_vars .= $vars;
$result_rules .= $rules;
}
}
# Handling the conditionals.
elsif (/$IF_PATTERN/o)
{
$cond = cond_stack_if ($1, $2, $file);
}
elsif (/$ELSE_PATTERN/o)
{
$cond = cond_stack_else ($1, $2, $file);
}
elsif (/$ENDIF_PATTERN/o)
{
$cond = cond_stack_endif ($1, $2, $file);
}
# Handling rules.
elsif (/$RULE_PATTERN/mso)
{
$is_rule = 1;
$discard_rule = 0;
# Separate relationship from optional actions: the first
# `new-line tab" not preceded by backslash (continuation
# line).
my $paragraph = $_;
/^(.*?)(?:(?<!\\)\n(\t.*))?$/s;
my ($relationship, $actions) = ($1, $2 || '');
# Separate targets from dependencies: the first colon.
$relationship =~ /^([^:]+\S+) *: *(.*)$/som;
my ($targets, $dependencies) = ($1, $2);
# Remove the escaped new lines.
# I don't know why, but I have to use a tmp $flat_deps.
my $flat_deps = &flatten ($dependencies);
my @deps = split (' ', $flat_deps);
foreach (split (' ' , $targets))
{
# FIXME: 1. We are not robust to people defining several targets
# at once, only some of them being in %dependencies. The
# actions from the targets in %dependencies are usually generated
# from the content of %actions, but if some targets in $targets
# are not in %dependencies the ELSE branch will output
# a rule for all $targets (i.e. the targets which are both
# in %dependencies and $targets will have two rules).
# FIXME: 2. The logic here is not able to output a
# multi-paragraph rule several time (e.g. for each condition
# it is defined for) because it only knows the first paragraph.
# FIXME: 3. We are not robust to people defining a subset
# of a previously defined "multiple-target" rule. E.g.
# `foo:' after `foo bar:'.
# Output only if not in FALSE.
if (defined $dependencies{$_} && $cond != FALSE)
{
&depend ($_, @deps);
if ($actions{$_})
{
$actions{$_} .= "\n$actions" if $actions;
}
else
{
$actions{$_} = $actions;
}
}
else
{
# Free-lance dependency. Output the rule for all the
# targets instead of one by one.
my @undefined_conds =
Automake::Rule::define ($targets, $file,
$is_am ? RULE_AUTOMAKE : RULE_USER,
$cond, $where);
for my $undefined_cond (@undefined_conds)
{
my $condparagraph = $paragraph;
$condparagraph =~ s/^/$undefined_cond->subst_string/gme;
$result_rules .= "$spacing$comment$condparagraph\n";
}
if (scalar @undefined_conds == 0)
{
# Remember to discard next paragraphs
# if they belong to this rule.
# (but see also FIXME: #2 above.)
$discard_rule = 1;
}
$comment = $spacing = '';
last;
}
}
}
elsif (/$ASSIGNMENT_PATTERN/mso)
{
my ($var, $type, $val) = ($1, $2, $3);
error $where, "variable `$var' with trailing backslash"
if /\\$/;
$is_rule = 0;
Automake::Variable::define ($var,
$is_am ? VAR_AUTOMAKE : VAR_MAKEFILE,
$type, $cond, $val, $comment, $where,
VAR_ASIS)
if $cond != FALSE;
$comment = $spacing = '';
}
else
{
# This isn't an error; it is probably some tokens which
# configure is supposed to replace, such as `@SET-MAKE@',
# or some part of a rule cut by an if/endif.
if (! $cond->false && ! ($is_rule && $discard_rule))
{
s/^/$cond->subst_string/gme;
$result_rules .= "$spacing$comment$_\n";
}
$comment = $spacing = '';
}
}
error ($where, @cond_stack ?
"unterminated conditionals: @cond_stack" :
"too many conditionals closed in include file")
if "@saved_cond_stack" ne "@cond_stack";
return ($comment, $result_vars, $result_rules);
}
# $CONTENTS
# &file_contents ($BASENAME, $WHERE, [%TRANSFORM])
# ------------------------------------------------
# Return contents of a file from $libdir/am, automatically skipping
# macros or rules which are already known.
sub file_contents ($$%)
{
my ($basename, $where, %transform) = @_;
my ($comments, $variables, $rules) =
file_contents_internal (1, "$libdir/am/$basename.am", $where,
%transform);
return "$comments$variables$rules";
}
# $REGEXP
# &transform (%PAIRS)
# -------------------
# For each ($TOKEN, $VAL) in %PAIRS produce a replacement expression
# suitable for file_contents which:
# - replaces %$TOKEN% with $VAL,
# - enables/disables ?$TOKEN? and ?!$TOKEN?,
# - replaces %?$TOKEN% with TRUE or FALSE.
sub transform (%)
{
my (%pairs) = @_;
my $result = '';
while (my ($token, $val) = each %pairs)
{
$result .= "s/\Q%$token%\E/\Q$val\E/gm;";
if ($val)
{
$result .= "s/\Q?$token?\E//gm;s/^.*\Q?!$token?\E.*\\n//gm;";
$result .= "s/\Q%?$token%\E/TRUE/gm;";
}
else
{
$result .= "s/\Q?!$token?\E//gm;s/^.*\Q?$token?\E.*\\n//gm;";
$result .= "s/\Q%?$token%\E/FALSE/gm;";
}
}
return $result;
}
# &append_exeext ($MACRO)
# -----------------------
# Macro is an Automake magic macro which primary is PROGRAMS, e.g.
# bin_PROGRAMS. Make sure these programs have $(EXEEXT) appended.
sub append_exeext ($)
{
my ($macro) = @_;
prog_error "append_exeext ($macro)"
unless $macro =~ /_PROGRAMS$/;
transform_variable_recursively
($macro, $macro, 'am__EXEEXT', 0, INTERNAL,
sub {
my ($subvar, $val, $cond, $full_cond) = @_;
# Append $(EXEEXT) unless the user did it already, or it's a
# @substitution@.
$val .= '$(EXEEXT)' unless $val =~ /(?:\$\(EXEEXT\)$|^[@]\w+[@]$)/;
return $val;
});
}
# @PREFIX
# &am_primary_prefixes ($PRIMARY, $CAN_DIST, @PREFIXES)
# -----------------------------------------------------
# Find all variable prefixes that are used for install directories. A
# prefix `zar' qualifies iff:
#
# * `zardir' is a variable.
# * `zar_PRIMARY' is a variable.
#
# As a side effect, it looks for misspellings. It is an error to have
# a variable ending in a "reserved" suffix whose prefix is unknown, e.g.
# "bin_PROGRAMS". However, unusual prefixes are allowed if a variable
# of the same name (with "dir" appended) exists. For instance, if the
# variable "zardir" is defined, then "zar_PROGRAMS" becomes valid.
# This is to provide a little extra flexibility in those cases which
# need it.
sub am_primary_prefixes ($$@)
{
my ($primary, $can_dist, @prefixes) = @_;
local $_;
my %valid = map { $_ => 0 } @prefixes;
$valid{'EXTRA'} = 0;
foreach my $var (variables)
{
# Automake is allowed to define variables that look like primaries
# but which aren't. E.g. INSTALL_sh_DATA.
# Autoconf can also define variables like INSTALL_DATA, so
# ignore all configure variables (at least those which are not
# redefined in Makefile.am).
# FIXME: We should make sure that these variables are not
# conditionally defined (or else adjust the condition below).
my $def = $var->def (TRUE);
next if $def && $def->owner != VAR_MAKEFILE;
my $varname = $var->name;
if ($varname =~ /^(nobase_)?(dist_|nodist_)?(.*)_$primary$/)
{
my ($base, $dist, $X) = ($1 || '', $2 || '', $3 || '');
if ($dist ne '' && ! $can_dist)
{
err_var ($var,
"invalid variable `$varname': `dist' is forbidden");
}
# Standard directories must be explicitly allowed.
elsif (! defined $valid{$X} && exists $standard_prefix{$X})
{
err_var ($var,
"`${X}dir' is not a legitimate directory " .
"for `$primary'");
}
# A not explicitly valid directory is allowed if Xdir is defined.
elsif (! defined $valid{$X} &&
$var->requires_variables ("`$varname' is used", "${X}dir"))
{
# Nothing to do. Any error message has been output
# by $var->requires_variables.
}
else
{
# Ensure all extended prefixes are actually used.
$valid{"$base$dist$X"} = 1;
}
}
}
# Return only those which are actually defined.
return sort grep { var ($_ . '_' . $primary) } keys %valid;
}
# Handle `where_HOW' variable magic. Does all lookups, generates
# install code, and possibly generates code to define the primary
# variable. The first argument is the name of the .am file to munge,
# the second argument is the primary variable (e.g. HEADERS), and all
# subsequent arguments are possible installation locations.
#
# Returns list of [$location, $value] pairs, where
# $value's are the values in all where_HOW variable, and $location
# there associated location (the place here their parent variables were
# defined).
#
# FIXME: this should be rewritten to be cleaner. It should be broken
# up into multiple functions.
#
# Usage is: am_install_var (OPTION..., file, HOW, where...)
sub am_install_var
{
my (@args) = @_;
my $do_require = 1;
my $can_dist = 0;
my $default_dist = 0;
while (@args)
{
if ($args[0] eq '-noextra')
{
$do_require = 0;
}
elsif ($args[0] eq '-candist')
{
$can_dist = 1;
}
elsif ($args[0] eq '-defaultdist')
{
$default_dist = 1;
$can_dist = 1;
}
elsif ($args[0] !~ /^-/)
{
last;
}
shift (@args);
}
my ($file, $primary, @prefix) = @args;
# Now that configure substitutions are allowed in where_HOW
# variables, it is an error to actually define the primary. We
# allow `JAVA', as it is customarily used to mean the Java
# interpreter. This is but one of several Java hacks. Similarly,
# `PYTHON' is customarily used to mean the Python interpreter.
reject_var $primary, "`$primary' is an anachronism"
unless $primary eq 'JAVA' || $primary eq 'PYTHON';
# Get the prefixes which are valid and actually used.
@prefix = am_primary_prefixes ($primary, $can_dist, @prefix);
# If a primary includes a configure substitution, then the EXTRA_
# form is required. Otherwise we can't properly do our job.
my $require_extra;
my @used = ();
my @result = ();
foreach my $X (@prefix)
{
my $nodir_name = $X;
my $one_name = $X . '_' . $primary;
my $one_var = var $one_name;
my $strip_subdir = 1;
# If subdir prefix should be preserved, do so.
if ($nodir_name =~ /^nobase_/)
{
$strip_subdir = 0;
$nodir_name =~ s/^nobase_//;
}
# If files should be distributed, do so.
my $dist_p = 0;
if ($can_dist)
{
$dist_p = (($default_dist && $nodir_name !~ /^nodist_/)
|| (! $default_dist && $nodir_name =~ /^dist_/));
$nodir_name =~ s/^(dist|nodist)_//;
}
# Use the location of the currently processed variable.
# We are not processing a particular condition, so pick the first
# available.
my $tmpcond = $one_var->conditions->one_cond;
my $where = $one_var->rdef ($tmpcond)->location->clone;
# Append actual contents of where_PRIMARY variable to
# @result, skipping @substitutions@.
foreach my $locvals ($one_var->value_as_list_recursive (location => 1))
{
my ($loc, $value) = @$locvals;
# Skip configure substitutions.
if ($value =~ /^\@.*\@$/)
{
if ($nodir_name eq 'EXTRA')
{
error ($where,
"`$one_name' contains configure substitution, "
. "but shouldn't");
}
# Check here to make sure variables defined in
# configure.ac do not imply that EXTRA_PRIMARY
# must be defined.
elsif (! defined $configure_vars{$one_name})
{
$require_extra = $one_name
if $do_require;
}
}
else
{
push (@result, $locvals);
}
}
# A blatant hack: we rewrite each _PROGRAMS primary to include
# EXEEXT.
append_exeext ($one_name)
if $primary eq 'PROGRAMS';
# "EXTRA" shouldn't be used when generating clean targets,
# all, or install targets. We used to warn if EXTRA_FOO was
# defined uselessly, but this was annoying.
next
if $nodir_name eq 'EXTRA';
if ($nodir_name eq 'check')
{
push (@check, '$(' . $one_name . ')');
}
else
{
push (@used, '$(' . $one_name . ')');
}
# Is this to be installed?
my $install_p = $nodir_name ne 'noinst' && $nodir_name ne 'check';
# If so, with install-exec? (or install-data?).
my $exec_p = ($nodir_name =~ /$EXEC_DIR_PATTERN/o);
my $check_options_p = $install_p && !! option 'std-options';
# Use the location of the currently processed variable as context.
$where->push_context ("while processing `$one_name'");
# The variable containing all file to distribute.
my $distvar = "\$($one_name)";
$distvar = shadow_unconditionally ($one_name, $where)
if ($dist_p && $one_var->has_conditional_contents);
# Singular form of $PRIMARY.
(my $one_primary = $primary) =~ s/S$//;
$output_rules .= &file_contents ($file, $where,
PRIMARY => $primary,
ONE_PRIMARY => $one_primary,
DIR => $X,
NDIR => $nodir_name,
BASE => $strip_subdir,
EXEC => $exec_p,
INSTALL => $install_p,
DIST => $dist_p,
DISTVAR => $distvar,
'CK-OPTS' => $check_options_p);
}
# The JAVA variable is used as the name of the Java interpreter.
# The PYTHON variable is used as the name of the Python interpreter.
if (@used && $primary ne 'JAVA' && $primary ne 'PYTHON')
{
# Define it.
define_pretty_variable ($primary, TRUE, INTERNAL, @used);
$output_vars .= "\n";
}
err_var ($require_extra,
"`$require_extra' contains configure substitution,\n"
. "but `EXTRA_$primary' not defined")
if ($require_extra && ! var ('EXTRA_' . $primary));
# Push here because PRIMARY might be configure time determined.
push (@all, '$(' . $primary . ')')
if @used && $primary ne 'JAVA' && $primary ne 'PYTHON';
# Make the result unique. This lets the user use conditionals in
# a natural way, but still lets us program lazily -- we don't have
# to worry about handling a particular object more than once.
# We will keep only one location per object.
my %result = ();
for my $pair (@result)
{
my ($loc, $val) = @$pair;
$result{$val} = $loc;
}
my @l = sort keys %result;
return map { [$result{$_}->clone, $_] } @l;
}
################################################################
# Each key in this hash is the name of a directory holding a
# Makefile.in. These variables are local to `is_make_dir'.
my %make_dirs = ();
my $make_dirs_set = 0;
sub is_make_dir
{
my ($dir) = @_;
if (! $make_dirs_set)
{
foreach my $iter (@configure_input_files)
{
$make_dirs{dirname ($iter)} = 1;
}
# We also want to notice Makefile.in's.
foreach my $iter (@other_input_files)
{
if ($iter =~ /Makefile\.in$/)
{
$make_dirs{dirname ($iter)} = 1;
}
}
$make_dirs_set = 1;
}
return defined $make_dirs{$dir};
}
################################################################
# Find the aux dir. This should match the algorithm used by
# ./configure. (See the Autoconf documentation for for
# AC_CONFIG_AUX_DIR.)
sub locate_aux_dir ()
{
if (! $config_aux_dir_set_in_configure_ac)
{
# The default auxiliary directory is the first
# of ., .., or ../.. that contains install-sh.
# Assume . if install-sh doesn't exist yet.
for my $dir (qw (. .. ../..))
{
if (-f "$dir/install-sh")
{
$config_aux_dir = $dir;
last;
}
}
$config_aux_dir = '.' unless $config_aux_dir;
}
# Avoid unsightly '/.'s.
$am_config_aux_dir =
'$(top_srcdir)' . ($config_aux_dir eq '.' ? "" : "/$config_aux_dir");
$am_config_aux_dir =~ s,/*$,,;
}
# &maybe_push_required_file ($DIR, $FILE, $FULLFILE)
# --------------------------------------------------
# See if we want to push this file onto dist_common. This function
# encodes the rules for deciding when to do so.
sub maybe_push_required_file
{
my ($dir, $file, $fullfile) = @_;
if ($dir eq $relative_dir)
{
push_dist_common ($file);
return 1;
}
elsif ($relative_dir eq '.' && ! &is_make_dir ($dir))
{
# If we are doing the topmost directory, and the file is in a
# subdir which does not have a Makefile, then we distribute it
# here.
# If a required file is above the source tree, it is important
# to prefix it with `$(srcdir)' so that no VPATH search is
# performed. Otherwise problems occur with Make implementations
# that rewrite and simplify rules whose dependencies are found in a
# VPATH location. Here is an example with OSF1/Tru64 Make.
#
# % cat Makefile
# VPATH = sub
# distdir: ../a
# echo ../a
# % ls
# Makefile a
# % make
# echo a
# a
#
# Dependency `../a' was found in `sub/../a', but this make
# implementation simplified it as `a'. (Note that the sub/
# directory does not even exist.)
#
# This kind of VPATH rewriting seems hard to cancel. The
# distdir.am hack against VPATH rewriting works only when no
# simplification is done, i.e., for dependencies which are in
# subdirectories, not in enclosing directories. Hence, in
# the latter case we use a full path to make sure no VPATH
# search occurs.
$fullfile = '$(srcdir)/' . $fullfile
if $dir =~ m,^\.\.(?:$|/),;
push_dist_common ($fullfile);
return 1;
}
return 0;
}
# If a file name appears as a key in this hash, then it has already
# been checked for. This allows us not to report the same error more
# than once.
my %required_file_not_found = ();
# &require_file_internal ($WHERE, $MYSTRICT, $DIRECTORY, @FILES)
# --------------------------------------------------------------
# Verify that the file must exist in $DIRECTORY, or install it.
# $MYSTRICT is the strictness level at which this file becomes required.
sub require_file_internal ($$$@)
{
my ($where, $mystrict, $dir, @files) = @_;
foreach my $file (@files)
{
my $fullfile = "$dir/$file";
my $found_it = 0;
my $dangling_sym = 0;
if (-l $fullfile && ! -f $fullfile)
{
$dangling_sym = 1;
}
elsif (dir_has_case_matching_file ($dir, $file))
{
$found_it = 1;
maybe_push_required_file ($dir, $file, $fullfile);
}
# `--force-missing' only has an effect if `--add-missing' is
# specified.
if ($found_it && (! $add_missing || ! $force_missing))
{
next;
}
else
{
# If we've already looked for it, we're done. You might
# wonder why we don't do this before searching for the
# file. If we do that, then something like
# AC_OUTPUT(subdir/foo foo) will fail to put foo.in into
# DIST_COMMON.
if (! $found_it)
{
next if defined $required_file_not_found{$fullfile};
$required_file_not_found{$fullfile} = 1;
}
if ($strictness >= $mystrict)
{
if ($dangling_sym && $add_missing)
{
unlink ($fullfile);
}
my $trailer = '';
my $suppress = 0;
# Only install missing files according to our desired
# strictness level.
my $message = "required file `$fullfile' not found";
if ($add_missing)
{
if (-f ("$libdir/$file"))
{
$suppress = 1;
# Install the missing file. Symlink if we
# can, copy if we must. Note: delete the file
# first, in case it is a dangling symlink.
$message = "installing `$fullfile'";
# Windows Perl will hang if we try to delete a
# file that doesn't exist.
unlink ($fullfile) if -f $fullfile;
if ($symlink_exists && ! $copy_missing)
{
if (! symlink ("$libdir/$file", $fullfile))
{
$suppress = 0;
$trailer = "; error while making link: $!";
}
}
elsif (system ('cp', "$libdir/$file", $fullfile))
{
$suppress = 0;
$trailer = "\n error while copying";
}
reset_dir_cache ($dir);
}
if (! maybe_push_required_file (dirname ($fullfile),
$file, $fullfile))
{
if (! $found_it && ! $automake_will_process_aux_dir)
{
# We have added the file but could not push it
# into DIST_COMMON, probably because this is
# an auxiliary file and we are not processing
# the top level Makefile. Furthermore Automake
# hasn't been asked to create the Makefile.in
# that distribute the aux dir files.
error ($where, 'Please make a full run of automake'
. " so $fullfile gets distributed.");
}
}
}
# If --force-missing was specified, and we have
# actually found the file, then do nothing.
next
if $found_it && $force_missing;
# If we couldn' install the file, but it is a target in
# the Makefile, don't print anything. This allows files
# like README, AUTHORS, or THANKS to be generated.
next
if !$suppress && rule $file;
msg ($suppress ? 'note' : 'error', $where, "$message$trailer");
}
}
}
}
# &require_file ($WHERE, $MYSTRICT, @FILES)
# -----------------------------------------
sub require_file ($$@)
{
my ($where, $mystrict, @files) = @_;
require_file_internal ($where, $mystrict, $relative_dir, @files);
}
# &require_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# -----------------------------------------------------------
sub require_file_with_macro ($$$@)
{
my ($cond, $macro, $mystrict, @files) = @_;
$macro = rvar ($macro) unless ref $macro;
require_file ($macro->rdef ($cond)->location, $mystrict, @files);
}
# &require_conf_file ($WHERE, $MYSTRICT, @FILES)
# ----------------------------------------------
# Looks in configuration path, as specified by AC_CONFIG_AUX_DIR.
sub require_conf_file ($$@)
{
my ($where, $mystrict, @files) = @_;
require_file_internal ($where, $mystrict, $config_aux_dir, @files);
}
# &require_conf_file_with_macro ($COND, $MACRO, $MYSTRICT, @FILES)
# ----------------------------------------------------------------
sub require_conf_file_with_macro ($$$@)
{
my ($cond, $macro, $mystrict, @files) = @_;
require_conf_file (rvar ($macro)->rdef ($cond)->location,
$mystrict, @files);
}
################################################################
# &require_build_directory ($DIRECTORY)
# ------------------------------------
# Emit rules to create $DIRECTORY if needed, and return
# the file that any target requiring this directory should be made
# dependent upon.
# We don't want to emit the rule twice, and want to reuse it
# for directories with equivalent names (e.g., `foo/bar' and `./foo//bar').
sub require_build_directory ($)
{
my $directory = shift;
return $directory_map{$directory} if exists $directory_map{$directory};
my $cdir = File::Spec->canonpath ($directory);
if (exists $directory_map{$cdir})
{
my $stamp = $directory_map{$cdir};
$directory_map{$directory} = $stamp;
return $stamp;
}
my $dirstamp = "$cdir/\$(am__dirstamp)";
$directory_map{$directory} = $dirstamp;
$directory_map{$cdir} = $dirstamp;
# Set a variable for the dirstamp basename.
define_pretty_variable ('am__dirstamp', TRUE, INTERNAL,
'$(am__leading_dot)dirstamp');
# Directory must be removed by `make distclean'.
$clean_files{$dirstamp} = DIST_CLEAN;
$output_rules .= ("$dirstamp:\n"
. "\t\@\$(mkdir_p) $directory\n"
. "\t\@: > $dirstamp\n");
return $dirstamp;
}
# &require_build_directory_maybe ($FILE)
# --------------------------------------
# If $FILE lies in a subdirectory, emit a rule to create this
# directory and return the file that $FILE should be made
# dependent upon. Otherwise, just return the empty string.
sub require_build_directory_maybe ($)
{
my $file = shift;
my $directory = dirname ($file);
if ($directory ne '.')
{
return require_build_directory ($directory);
}
else
{
return '';
}
}
################################################################
# Push a list of files onto dist_common.
sub push_dist_common
{
prog_error "push_dist_common run after handle_dist"
if $handle_dist_run;
Automake::Variable::define ('DIST_COMMON', VAR_AUTOMAKE, '+', TRUE, "@_",
'', INTERNAL, VAR_PRETTY);
}
################################################################
# generate_makefile ($MAKEFILE_AM, $MAKEFILE_IN)
# ----------------------------------------------
# Generate a Makefile.in given the name of the corresponding Makefile and
# the name of the file output by config.status.
sub generate_makefile ($$)
{
my ($makefile_am, $makefile_in) = @_;
# Reset all the Makefile.am related variables.
initialize_per_input;
# AUTOMAKE_OPTIONS can contains -W flags to disable or enable
# warnings for this file. So hold any warning issued before
# we have processed AUTOMAKE_OPTIONS.
buffer_messages ('warning');
# Name of input file ("Makefile.am") and output file
# ("Makefile.in"). These have no directory components.
$am_file_name = basename ($makefile_am);
$in_file_name = basename ($makefile_in);
# $OUTPUT is encoded. If it contains a ":" then the first element
# is the real output file, and all remaining elements are input
# files. We don't scan or otherwise deal with these input files,
# other than to mark them as dependencies. See
# &scan_autoconf_files for details.
my ($makefile, @inputs) = split (/:/, $output_files{$makefile_in});
$relative_dir = dirname ($makefile);
$am_relative_dir = dirname ($makefile_am);
read_main_am_file ($makefile_am);
if (handle_options)
{
# Process buffered warnings.
flush_messages;
# Fatal error. Just return, so we can continue with next file.
return;
}
# Process buffered warnings.
flush_messages;
# There are a few install-related variables that you should not define.
foreach my $var ('PRE_INSTALL', 'POST_INSTALL', 'NORMAL_INSTALL')
{
my $v = var $var;
if ($v)
{
my $def = $v->def (TRUE);
prog_error "$var not defined in condition TRUE"
unless $def;
reject_var $var, "`$var' should not be defined"
if $def->owner != VAR_AUTOMAKE;
}
}
# Catch some obsolete variables.
msg_var ('obsolete', 'INCLUDES',
"`INCLUDES' is the old name for `AM_CPPFLAGS' (or `*_CPPFLAGS')")
if var ('INCLUDES');
# At the toplevel directory, we might need config.guess, config.sub.
# (Libtool scripts such ltconfig as ltmain.sh are checked for in
# handle_libtool.)
if ($relative_dir eq '.')
{
# AC_CANONICAL_HOST, AC_CANONICAL_SYSTEM, and AC_CANONICAL_TARGET
# need config.guess and config.sub.
require_conf_file ($canonical_location, FOREIGN,
'config.guess', 'config.sub')
if $seen_canonical;
}
# Must do this after reading .am file.
define_variable ('subdir', $relative_dir, INTERNAL);
# If DIST_SUBDIRS is defined, make sure SUBDIRS is, so that
# recursive rules are enabled.
define_pretty_variable ('SUBDIRS', TRUE, INTERNAL, '')
if var 'DIST_SUBDIRS' && ! var 'SUBDIRS';
# Check first, because we might modify some state.
check_cygnus;
check_gnu_standards;
check_gnits_standards;
handle_configure ($makefile_am, $makefile_in, $makefile, @inputs);
handle_gettext;
handle_libraries;
handle_ltlibraries;
handle_programs;
handle_scripts;
# These must be run after all the sources are scanned. They
# use variables defined by &handle_libraries, &handle_ltlibraries,
# or &handle_programs.
handle_compile;
handle_languages;
handle_libtool;
# Variables used by distdir.am and tags.am.
define_pretty_variable ('SOURCES', TRUE, INTERNAL, @sources);
if (! option 'no-dist')
{
define_pretty_variable ('DIST_SOURCES', TRUE, INTERNAL, @dist_sources);
}
handle_multilib;
handle_texinfo;
handle_emacs_lisp;
handle_python;
handle_java;
handle_man_pages;
handle_data;
handle_headers;
handle_subdirs;
handle_tags;
handle_minor_options;
handle_tests;
# This must come after most other rules.
handle_dist;
handle_footer;
do_check_merge_target;
handle_all ($makefile);
# FIXME: Gross!
if (var ('lib_LTLIBRARIES') && var ('bin_PROGRAMS'))
{
$output_rules .= "install-binPROGRAMS: install-libLTLIBRARIES\n\n";
}
handle_install;
handle_clean ($makefile);
handle_factored_dependencies;
# Comes last, because all the above procedures may have
# defined or overridden variables.
$output_vars .= output_variables;
check_typos;
my ($out_file) = $output_directory . '/' . $makefile_in;
if ($exit_code != 0)
{
verb "not writing $out_file because of earlier errors";
return;
}
if (! -d ($output_directory . '/' . $am_relative_dir))
{
mkdir ($output_directory . '/' . $am_relative_dir, 0755);
}
# We make sure that `all:' is the first target.
my $output =
"$output_vars$output_all$output_header$output_rules$output_trailer";
# Decide whether we must update the output file or not.
# We have to update in the following situations.
# * $force_generation is set.
# * any of the output dependencies is younger than the output
# * the contents of the output is different (this can happen
# if the project has been populated with a file listed in
# @common_files since the last run).
# Output's dependencies are split in two sets:
# * dependencies which are also configure dependencies
# These do not change between each Makefile.am
# * other dependencies, specific to the Makefile.am being processed
# (such as the Makefile.am itself, or any Makefile fragment
# it includes).
my $timestamp = mtime $out_file;
if (! $force_generation
&& $configure_deps_greatest_timestamp < $timestamp
&& $output_deps_greatest_timestamp < $timestamp
&& $output eq contents ($out_file))
{
verb "$out_file unchanged";
# No need to update.
return;
}
if (-e $out_file)
{
unlink ($out_file)
or fatal "cannot remove $out_file: $!\n";
}
my $gm_file = new Automake::XFile "> $out_file";
verb "creating $out_file";
print $gm_file $output;
}
################################################################
################################################################
# Print usage information.
sub usage ()
{
print "Usage: $0 [OPTION] ... [Makefile]...
Generate Makefile.in for configure from Makefile.am.
Operation modes:
--help print this help, then exit
--version print version number, then exit
-v, --verbose verbosely list files processed
--no-force only update Makefile.in's that are out of date
-W, --warnings=CATEGORY report the warnings falling in CATEGORY
Dependency tracking:
-i, --ignore-deps disable dependency tracking code
--include-deps enable dependency tracking code
Flavors:
--cygnus assume program is part of Cygnus-style tree
--foreign set strictness to foreign
--gnits set strictness to gnits
--gnu set strictness to gnu
Library files:
-a, --add-missing add missing standard files to package
--libdir=DIR directory storing library files
-c, --copy with -a, copy missing files (default is symlink)
-f, --force-missing force update of standard files
";
Automake::ChannelDefs::usage;
my ($last, @lcomm);
$last = '';
foreach my $iter (sort ((@common_files, @common_sometimes)))
{
push (@lcomm, $iter) unless $iter eq $last;
$last = $iter;
}
my @four;
print "\nFiles which are automatically distributed, if found:\n";
format USAGE_FORMAT =
@<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<< @<<<<<<<<<<<<<<<<
$four[0], $four[1], $four[2], $four[3]
.
$~ = "USAGE_FORMAT";
my $cols = 4;
my $rows = int(@lcomm / $cols);
my $rest = @lcomm % $cols;
if ($rest)
{
$rows++;
}
else
{
$rest = $cols;
}
for (my $y = 0; $y < $rows; $y++)
{
@four = ("", "", "", "");
for (my $x = 0; $x < $cols; $x++)
{
last if $y + 1 == $rows && $x == $rest;
my $idx = (($x > $rest)
? ($rows * $rest + ($rows - 1) * ($x - $rest))
: ($rows * $x));
$idx += $y;
$four[$x] = $lcomm[$idx];
}
write;
}
print "\nReport bugs to <bug-automake\@gnu.org>.\n";
# --help always returns 0 per GNU standards.
exit 0;
}
# &version ()
# -----------
# Print version information
sub version ()
{
print <<EOF;
automake (GNU $PACKAGE) $VERSION
Written by Tom Tromey <tromey\@redhat.com>.
Copyright 2005 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
EOF
# --version always returns 0 per GNU standards.
exit 0;
}
################################################################
# Parse command line.
sub parse_arguments ()
{
# Start off as gnu.
set_strictness ('gnu');
my $cli_where = new Automake::Location;
my %cli_options =
(
'libdir:s' => \$libdir,
'gnu' => sub { set_strictness ('gnu'); },
'gnits' => sub { set_strictness ('gnits'); },
'cygnus' => sub { set_global_option ('cygnus', $cli_where); },
'foreign' => sub { set_strictness ('foreign'); },
'include-deps' => sub { unset_global_option ('no-dependencies'); },
'i|ignore-deps' => sub { set_global_option ('no-dependencies',
$cli_where); },
'no-force' => sub { $force_generation = 0; },
'f|force-missing' => \$force_missing,
'o|output-dir:s' => \$output_directory,
'a|add-missing' => \$add_missing,
'c|copy' => \$copy_missing,
'v|verbose' => sub { setup_channel 'verb', silent => 0; },
'W|warnings:s' => \&parse_warnings,
# These long options (--Werror and --Wno-error) for backward
# compatibility. Use -Werror and -Wno-error today.
'Werror' => sub { parse_warnings 'W', 'error'; },
'Wno-error' => sub { parse_warnings 'W', 'no-error'; },
);
use Getopt::Long;
Getopt::Long::config ("bundling", "pass_through");
# See if --version or --help is used. We want to process these before
# anything else because the GNU Coding Standards require us to
# `exit 0' after processing these options, and we can't guarantee this
# if we treat other options first. (Handling other options first
# could produce error diagnostics, and in this condition it is
# confusing if Automake does `exit 0'.)
my %cli_options_1st_pass =
(
'version' => \&version,
'help' => \&usage,
# Recognize all other options (and their arguments) but do nothing.
map { $_ => sub {} } (keys %cli_options)
);
my @ARGV_backup = @ARGV;
Getopt::Long::GetOptions %cli_options_1st_pass
or exit 1;
@ARGV = @ARGV_backup;
# Now *really* process the options. This time we know
# that --help and --version are not present.
Getopt::Long::GetOptions %cli_options
or exit 1;
if (defined $output_directory)
{
msg 'obsolete', "`--output-dir' is deprecated\n";
}
else
{
# In the next release we'll remove this entirely.
$output_directory = '.';
}
my $errspec = 0;
foreach my $arg (@ARGV)
{
if ($arg =~ /^-./)
{
fatal ("unrecognized option `$arg'\n"
. "Try `$0 --help' for more information.");
}
# Handle $local:$input syntax.
my ($local, @rest) = split (/:/, $arg);
@rest = ("$local.in",) unless @rest;
my $input = locate_am @rest;
if ($input)
{
push @input_files, $input;
$output_files{$input} = join (':', ($local, @rest));
}
else
{
error "no Automake input file found for `$arg'";
$errspec = 1;
}
}
fatal "no input file found among supplied arguments"
if $errspec && ! @input_files;
}
################################################################
# Parse the WARNINGS environment variable.
parse_WARNINGS;
# Parse command line.
parse_arguments;
$configure_ac = require_configure_ac;
# Do configure.ac scan only once.
scan_autoconf_files;
if (! @input_files)
{
my $msg = '';
$msg = "\nDid you forget AC_CONFIG_FILES([Makefile]) in $configure_ac?"
if -f 'Makefile.am';
fatal ("no `Makefile.am' found for any configure output$msg");
}
# Now do all the work on each file.
foreach my $file (@input_files)
{
($am_file = $file) =~ s/\.in$//;
if (! -f ($am_file . '.am'))
{
error "`$am_file.am' does not exist";
}
else
{
# Any warning setting now local to this Makefile.am.
dup_channel_setup;
generate_makefile ($am_file . '.am', $file);
# Back out any warning setting.
drop_channel_setup;
}
}
exit $exit_code;
### Setup "GNU" style for perl-mode and cperl-mode.
## Local Variables:
## perl-indent-level: 2
## perl-continued-statement-offset: 2
## perl-continued-brace-offset: 0
## perl-brace-offset: 0
## perl-brace-imaginary-offset: 0
## perl-label-offset: -2
## cperl-indent-level: 2
## cperl-brace-offset: 0
## cperl-continued-brace-offset: 0
## cperl-label-offset: -2
## cperl-extra-newline-before-brace: t
## cperl-merge-trailing-else: nil
## cperl-continued-statement-offset: 2
## End:
@KyuuKazami