# -*- perl -*-
# @configure_input@
-# aclocal - create aclocal.m4 by scanning configure.in
-# Copyright (C) 1996, 1997, 1998 Free Software Foundation, Inc.
+eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
+ if 0;
+
+# aclocal - create aclocal.m4 by scanning configure.ac
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# 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
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
-# Written by Tom Tromey <tromey@cygnus.com>.
+# Written by Tom Tromey <tromey@redhat.com>.
-eval 'exec @PERL@ -S $0 ${1+"$@"}'
- if 0;
+BEGIN
+{
+ my $prefix = '@prefix@';
+ my $perllibdir = $ENV{'perllibdir'} || '@datadir@/@PACKAGE@-@APIVERSION@';
+ unshift @INC, $perllibdir;
+}
-# aclocal - scan configure.in and generate aclocal.m4.
+use Automake::General;
+use Automake::XFile;
# Some constants.
-$VERSION = "@VERSION@";
-$PACKAGE = "@PACKAGE@";
-$prefix = "@prefix@";
+$VERSION = '@VERSION@';
+$APIVERSION = '@APIVERSION@';
+$PACKAGE = '@PACKAGE@';
+$prefix = '@prefix@';
# Note that this isn't pkgdatadir, but a separate directory.
-$acdir = "@datadir@/aclocal";
+# Note also that the versioned directory is handled later.
+$acdir = '@datadir@/aclocal';
+$default_acdir = $acdir;
+# contains a list of directories, one per line, to be added
+# to the dirlist in addition to $acdir, as if -I had been
+# added to the command line. If acdir has been redirected,
+# we will also check the specified acdir (this is done later).
+$default_dirlist = "$default_acdir/dirlist";
# Some globals.
# Exit status.
$exit_status = 0;
+# Name of the top autoconf input: `configure.ac' or `configure.in'.
+$configure_ac = find_configure_ac;
+
# Text to output.
$output = '';
%file_contents = ();
# How much to say.
-$verbosity = 0;
-
-@obsolete_macros =
- (
- 'AC_FEATURE_CTYPE',
- 'AC_FEATURE_ERRNO',
- 'AC_FEATURE_EXIT',
- 'AC_SYSTEM_HEADER',
- 'fp_C_PROTOTYPES',
- 'fp_FUNC_FNMATCH',
- 'fp_PROG_CC_STDC',
- 'fp_PROG_INSTALL',
- 'fp_WITH_DMALLOC',
- 'fp_WITH_REGEX',
- 'gm_PROG_LIBTOOL',
- 'jm_MAINTAINER_MODE',
- 'md_TYPE_PTRDIFF_T',
- 'ud_PATH_LISPDIR',
- 'ud_GNU_GETTEXT',
-
- # Now part of autoconf proper, under a different name.
- 'AM_FUNC_FNMATCH',
- 'AM_SANITY_CHECK_CC',
-
-# These aren't quite obsolete.
-# 'md_PATH_PROG',
-# 'ud_LC_MESSAGES',
-# 'ud_WITH_NLS'
- );
-
-$obsolete_rx = '(' . join ('|', @obsolete_macros) . ')';
+$verbose = 0;
# Matches a macro definition.
-$ac_defun_rx = "AC_DEFUN\\(\\[?([^],)\n]+)\\]?";
+$ac_defun_rx = "A[CU]_DEFUN\\(\\[?([^],)\n]+)\\]?";
# Matches an AC_REQUIRE line.
$ac_require_rx = "AC_REQUIRE\\(\\[?([^])]*)\\]?\\)";
\f
local (@dirlist) = &parse_arguments (@ARGV);
-&scan_m4_files ($acdir, @dirlist);
+&scan_m4_files (@dirlist);
&scan_configure;
if (! $exit_status)
{
################################################################
# Print usage and exit.
-sub usage
+sub usage ($)
{
local ($status) = @_;
print "Usage: aclocal [OPTIONS] ...\n\n";
- print "Generate aclocal.m4 by scanning configure.in\n
+ print "\
+Generate `aclocal.m4' by scanning `configure.ac' or `configure.in'
+
--acdir=DIR directory holding config files
--help print this help, then exit
-I DIR add directory to search list for .m4 files
--output=FILE put output in FILE (default aclocal.m4)
+ --print-ac-dir print name of directory holding m4 files
--verbose don't be silent
--version print version number, then exit
-Report bugs to <automake-bugs\@gnu.org>.\n";
+Report bugs to <bug-automake\@gnu.org>.\n";
exit $status;
}
# Parse command line.
-sub parse_arguments
+sub parse_arguments (@)
{
local (@arglist) = @_;
local (@dirlist);
+ local ($print_and_exit) = 0;
while (@arglist)
{
shift (@arglist);
push (@dirlist, $arglist[0]);
}
+ elsif ($arglist[0] eq '--print-ac-dir')
+ {
+ $print_and_exit = 1;
+ }
elsif ($arglist[0] eq '--verbose')
{
- ++$verbosity;
+ ++$verbose;
}
elsif ($arglist[0] eq '--version')
{
print "aclocal (GNU $PACKAGE) $VERSION\n\n";
- print "Copyright (C) 1996, 1997 Free Software Foundation, Inc.\n";
+ print "Copyright (C) 2002 Free Software Foundation, Inc.\n";
print "This is free software; see the source for copying conditions. There is NO\n";
print "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n\n";
- print "Written by Tom Tromey <tromey\@cygnus.com>\n";
+ print "Written by Tom Tromey <tromey\@redhat.com>\n";
exit 0;
}
elsif ($arglist[0] eq '--help')
}
else
{
- die "aclocal: unrecognized option -- \`$arglist[0]'\nTry \`aclocal --help' for more information.\n";
+ die "aclocal: unrecognized option -- `$arglist[0]'\nTry `aclocal --help' for more information.\n";
}
shift (@arglist);
}
+ if ($print_and_exit)
+ {
+ print $acdir, "\n";
+ exit 0;
+ }
+
+ $default_dirlist="$acdir/dirlist"
+ if $acdir ne $default_acdir;
+
+ # Search the versioned directory near the end, and then the
+ # unversioned directory last. Only do this if the user didn't
+ # override acdir.
+ push (@dirlist, "$acdir-$APIVERSION")
+ if $acdir eq $default_acdir;
+
+ # By default $(datadir)/aclocal doesn't exist. We don't want to
+ # get an error in the case where we are searching the default
+ # directory and it hasn't been created.
+ push (@dirlist, $acdir)
+ unless $acdir eq $default_acdir && ! -d $acdir;
+
+ # Finally, adds any directory listed in the `dirlist' file.
+ if (open (DEFAULT_DIRLIST, $default_dirlist))
+ {
+ while (<DEFAULT_DIRLIST>)
+ {
+ # Ignore '#' lines.
+ next if /^#/;
+ # strip off newlines and end-of-line comments
+ s/\s*\#.*$//;
+ chomp ($contents=$_);
+ if (-d $contents )
+ {
+ push (@dirlist, $contents);
+ }
+ }
+ close (DEFAULT_DIRLIST);
+ }
+
+
return @dirlist;
}
################################################################
-sub scan_configure
+sub scan_configure ()
{
- open (CONFIGURE, "configure.in")
- || die "aclocal: couldn't open \`configure.in': $!\n";
+ die "aclocal: `configure.ac' or `configure.in' is required\n"
+ if !$configure_ac;
+
+ open (CONFIGURE, $configure_ac)
+ || die "aclocal: couldn't open `$configure_ac': $!\n";
# Make sure we include acinclude.m4 if it exists.
if (-f 'acinclude.m4')
s/\bdnl\b.*$//;
s/\#.*$//;
- if (/$obsolete_rx/o)
- {
- chop;
- warn "aclocal: configure.in: $.: obsolete macro \`$_'\n";
- $exit_status = 1;
- next;
- }
-
# Search for things we know about. The "search" sub is
- # constructed dynamically by scan_m4_files.
- if (! &search && /(AM_[A-Z_]+)/)
+ # constructed dynamically by scan_m4_files. The last
+ # parenthethical match makes sure we don't match things that
+ # look like macro assignments or AC_SUBSTs.
+ if (! &search && /(^|\s+)(AM_[A-Z0-9_]+)($|[^\]\)=A-Z0-9_])/)
{
# Macro not found, but AM_ prefix found.
- warn "aclocal: configure.in: $.: macro \`$1' not found in library\n";
+ warn "aclocal: $configure_ac: $.: macro `$2' not found in library\n";
$exit_status = 1;
}
}
################################################################
# Check macros in acinclude.m4. If one is not used, warn.
-sub check_acinclude
+sub check_acinclude ()
{
local ($key);
if (! $macro_seen{$key})
{
# FIXME: should print line number of acinclude.m4.
- warn "aclocal: macro \`$key' defined in acinclude.m4 but never used\n";
+ warn "aclocal: macro `$key' defined in acinclude.m4 but never used\n";
}
}
}
################################################################
# Scan all the installed m4 files and construct a map.
-sub scan_m4_files
+sub scan_m4_files (@)
{
local (@dirlist) = @_;
foreach $m4dir (@dirlist)
{
opendir (DIR, $m4dir)
- || die "aclocal: couldn't open directory \`$m4dir': $!\n";
- local ($file, $fullfile, $expr);
+ || die "aclocal: couldn't open directory `$m4dir': $!\n";
+ local ($file, $fullfile);
foreach $file (sort grep (! /^\./, readdir (DIR)))
{
# Only examine .m4 files.
# Construct a new function that does the searching. We use a
# function (instead of just evalling $search in the loop) so that
# "die" is correctly and easily propagated if run.
- local ($search, $expr, $key) = '';
- foreach $key (keys %map)
+ my $search = "sub search {\nmy \$found = 0;\n";
+ foreach my $key (reverse sort keys %map)
{
# EXPR is a regexp matching the name of the macro.
- ($expr = $key) =~ s/(\W)/\\$1/g;
- $search .= ("if (/" . $expr . "/) { & add_macro (" . $key
- . "); return 1; }\n");
+ (my $expr = $key) =~ s/(\W)/\\$1/g;
+ $search .= ('if (/\b' . $key . '\b/) { & add_macro (' . $key
+ . '); $found = 1; }' . "\n");
}
- $search .= "return 0;\n";
- eval 'sub search { ' . $search . '};';
- die "internal error: $@\n search is $search " if $@;
+ $search .= "return \$found;\n};\n";
+ eval $search;
+ die "internal error: $@\n search is $search" if $@;
}
################################################################
# Add a macro to the output.
-sub add_macro
+sub add_macro ($)
{
local ($macro) = @_;
if (! defined $map{$macro})
{
- warn "aclocal: macro \`$macro' required but not defined\n";
+ warn "aclocal: macro `$macro' required but not defined\n";
$exit_status = 1;
return;
}
- print STDERR "saw macro $macro\n" if $verbosity;
+ print STDERR "aclocal: saw macro $macro\n" if $verbose;
$macro_seen{$macro} = 1;
&add_file ($map{$macro});
}
# Add a file to output.
-sub add_file
+sub add_file ($)
{
local ($file) = @_;
$file_seen{$file} = 1;
$output .= $file_contents{$file} . "\n";
- local ($a, @rlist);
+ my (@rlist);
foreach (split ("\n", $file_contents{$file}))
{
- # This is a hack for Perl 4.
- $a = $_;
- if ($a =~ /$ac_require_rx/g)
+ # Remove comments from current line.
+ s/\bdnl\b.*$//;
+ s/\#.*$//;
+
+ if (/$ac_require_rx/g)
{
push (@rlist, $1);
}
- # This function constructed dynamically.
- &search;
+ # The search function is constructed dynamically by
+ # scan_m4_files. The last parenthethical match makes sure we
+ # don't match things that look like macro assignments or
+ # AC_SUBSTs.
+ if (! &search && /(^|\s+)(AM_[A-Z0-9_]+)($|[^\]\)=A-Z0-9_])/)
+ {
+ # Macro not found, but AM_ prefix found.
+ warn "aclocal: $configure_ac: $.: macro `$2' not found in library\n";
+ $exit_status = 1;
+ }
}
local ($macro);
}
# Scan a single M4 file. Return contents.
-sub scan_file
+sub scan_file ($)
{
local ($file) = @_;
- open (FILE, $file)
- || die "aclocal: couldn't open \`$file': $!\n";
- local ($contents) = '';
- while (<FILE>)
+ my $fh = new Automake::XFile $file;
+ my $contents = '';
+ while ($_ = $fh->getline)
{
# Ignore `##' lines.
next if /^##/;
if (/$ac_defun_rx/)
{
- if (!defined $map{$1})
+ if (! defined $map{$1})
{
$map{$1} = $file;
}
- # Allow acinclude.m4 to override other macro files.
- elsif ($map{$1} ne 'acinclude.m4' || $file eq 'acinclude.m4')
- {
- warn "aclocal: $file: $.: duplicated macro \`$1'\n";
- $exit_status = 1;
- }
- print STDERR "Found macro $1 in $file: $.\n" if $verbosity;
+
+ # Note: we used to give an error here if we saw a
+ # duplicated macro. However, this turns out to be
+ # extremely unpopular. It causes actual problems which
+ # are hard to work around, especially when you must
+ # mix-and-match tool versions.
+
+ print STDERR "aclocal: found macro $1 in $file: $.\n" if $verbose;
}
}
- close (FILE);
return $contents;
}
################################################################
# Write output.
-sub write_aclocal
+sub write_aclocal ()
{
return if ! length ($output);
- print STDERR "Writing aclocal.m4\n" if $verbosity;
-
- open (ACLOCAL, "> " . $output_file)
- || die "aclocal: couldn't open \`$output_file' for writing: $!\n";
- print ACLOCAL "dnl aclocal.m4 generated automatically by aclocal $VERSION\n";
- print ACLOCAL "\
-dnl Copyright (C) 1994, 1995, 1996, 1997 Free Software Foundation, Inc.
-dnl This Makefile.in is free software; the Free Software Foundation
-dnl gives unlimited permission to copy and/or distribute it,
-dnl with or without modifications, as long as this notice is preserved.
-
-dnl This program is distributed in the hope that it will be useful,
-dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
-dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-dnl PARTICULAR PURPOSE.
-
-";
- print ACLOCAL $output;
- close (ACLOCAL);
+ print STDERR "aclocal: writing $output_file\n" if $verbose;
+
+ my $out = new Automake::XFile "> $output_file";
+
+# We used to print `# $output_file generated automatically etc.' But
+# this creates spurious differences when using autoreconf. Autoreconf
+# creates aclocal.m4t and then rename it to aclocal.m4, but the
+# rebuild rules generated by Automake create aclocal.m4 directly --
+# this would gives two ways to get the same file, with a different
+# name in the header.
+ print $out
+"# generated automatically by aclocal $VERSION -*- Autoconf -*-
+
+# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002
+# Free Software Foundation, Inc.
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+$output";
}
+
+### 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:
projects / platform / upstream / automake.git / blobdiff