| 1 | #! @PERL@ -w
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| 2 | # -*- perl -*-
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| 3 | # @configure_input@
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| 4 |
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| 5 | # autoscan - Create configure.scan (a preliminary configure.ac) for a package.
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| 6 | # Copyright (C) 1994, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006
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| 7 | # Free Software Foundation, Inc.
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| 8 |
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| 9 | # This program is free software; you can redistribute it and/or modify
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| 10 | # it under the terms of the GNU General Public License as published by
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| 11 | # the Free Software Foundation; either version 2, or (at your option)
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| 12 | # any later version.
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| 13 |
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| 14 | # This program is distributed in the hope that it will be useful,
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| 15 | # but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 16 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 17 | # GNU General Public License for more details.
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| 18 |
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| 19 | # You should have received a copy of the GNU General Public License
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| 20 | # along with this program; if not, write to the Free Software
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| 21 | # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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| 22 | # 02110-1301, USA.
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| 23 |
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| 24 | # Written by David MacKenzie <[email protected]>.
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| 25 |
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| 26 | eval 'case $# in 0) exec @PERL@ -S "$0";; *) exec @PERL@ -S "$0" "$@";; esac'
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| 27 | if 0;
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| 28 |
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| 29 | BEGIN
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| 30 | {
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| 31 | my $datadir = $ENV{'autom4te_perllibdir'} || '@datadir@';
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| 32 | $datadir =~ s/\/\@unixroot/$ENV{'UNIXROOT'}/; # The EMX built perl doesn't know @unixroot.
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| 33 | unshift @INC, $datadir;
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| 34 |
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| 35 | # Override SHELL. On DJGPP SHELL may not be set to a shell
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| 36 | # that can handle redirection and quote arguments correctly,
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| 37 | # e.g.: COMMAND.COM. For DJGPP always use the shell that configure
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| 38 | # has detected.
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| 39 | $ENV{'SHELL'} = '@SHELL@' if ($^O eq 'dos');
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| 40 | }
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| 41 |
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| 42 | use Autom4te::ChannelDefs;
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| 43 | use Autom4te::Configure_ac;
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| 44 | use Autom4te::General;
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| 45 | use Autom4te::FileUtils;
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| 46 | use Autom4te::XFile;
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| 47 | use File::Basename;
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| 48 | use File::Find;
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| 49 | use strict;
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| 50 |
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| 51 | use vars qw(@cfiles @makefiles @shfiles @subdirs %printed);
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| 52 |
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| 53 | # The kind of the words we are looking for.
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| 54 | my @kinds = qw (function header identifier program
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| 55 | makevar librarie);
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| 56 |
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| 57 | # For each kind, the default macro.
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| 58 | my %generic_macro =
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| 59 | (
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| 60 | 'function' => 'AC_CHECK_FUNCS',
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| 61 | 'header' => 'AC_CHECK_HEADERS',
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| 62 | 'identifier' => 'AC_CHECK_TYPES',
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| 63 | 'program' => 'AC_CHECK_PROGS',
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| 64 | 'library' => 'AC_CHECK_LIB'
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| 65 | );
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| 66 |
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| 67 | my %kind_comment =
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| 68 | (
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| 69 | 'function' => 'Checks for library functions.',
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| 70 | 'header' => 'Checks for header files.',
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| 71 | 'identifier' => 'Checks for typedefs, structures, and compiler characteristics.',
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| 72 | 'program' => 'Checks for programs.',
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| 73 | );
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| 74 |
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| 75 | # $USED{KIND}{ITEM} is the list of locations where the ITEM (of KIND) was used
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| 76 | # in the user package.
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| 77 | # For instance $USED{function}{alloca} is the list of `file:line' where
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| 78 | # `alloca (...)' appears.
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| 79 | my %used = ();
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| 80 |
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| 81 | # $MACRO{KIND}{ITEM} is the list of macros to use to test ITEM.
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| 82 | # Initialized from lib/autoscan/*. E.g., $MACRO{function}{alloca} contains
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| 83 | # the singleton AC_FUNC_ALLOCA. Some require several checks.
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| 84 | my %macro = ();
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| 85 |
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| 86 | # $NEEDED_MACROS{MACRO} is an array of locations requiring MACRO.
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| 87 | # E.g., $NEEDED_MACROS{AC_FUNC_ALLOC} the list of `file:line' containing
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| 88 | # `alloca (...)'.
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| 89 | my %needed_macros =
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| 90 | (
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| 91 | 'AC_PREREQ' => [$me],
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| 92 | );
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| 93 |
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| 94 | my $configure_scan = 'configure.scan';
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| 95 | my $log;
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| 96 |
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| 97 | # Autoconf and lib files.
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| 98 | my $autom4te = $ENV{'AUTOM4TE'} || '@bindir@/@autom4te-name@';
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| 99 | $autom4te =~ s/\/\@unixroot/$ENV{'UNIXROOT'}/; # The EMX built perl doesn't know @unixroot.
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| 100 | my $autoconf = "$autom4te --language=autoconf";
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| 101 | my @prepend_include;
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| 102 | my $first_include = '@datadir@';
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| 103 | $first_include =~ s/\/\@unixroot/$ENV{'UNIXROOT'}/; # The EMX built perl doesn't know @unixroot.
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| 104 | my @include = ("$first_include");
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| 105 |
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| 106 | # $help
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| 107 | # -----
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| 108 | $help = "Usage: $0 [OPTION] ... [SRCDIR]
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| 109 |
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| 110 | Examine source files in the directory tree rooted at SRCDIR, or the
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| 111 | current directory if none is given. Search the source files for
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| 112 | common portability problems, check for incompleteness of
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| 113 | `configure.ac', and create a file `$configure_scan' which is a
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| 114 | preliminary `configure.ac' for that package.
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| 115 |
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| 116 | -h, --help print this help, then exit
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| 117 | -V, --version print version number, then exit
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| 118 | -v, --verbose verbosely report processing
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| 119 | -d, --debug don't remove temporary files
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| 120 |
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| 121 | Library directories:
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| 122 | -B, --prepend-include=DIR prepend directory DIR to search path
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| 123 | -I, --include=DIR append directory DIR to search path
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| 124 |
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| 125 | Report bugs to <bug-autoconf\@gnu.org>.\n";
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| 126 |
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| 127 | # $version
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| 128 | # --------
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| 129 | $version = "autoscan (@PACKAGE_NAME@) @VERSION@
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| 130 | Copyright (C) 2006 Free Software Foundation, Inc.
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| 131 | This is free software. You may redistribute copies of it under the terms of
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| 132 | the GNU General Public License <http://www.gnu.org/licenses/gpl.html>.
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| 133 | There is NO WARRANTY, to the extent permitted by law.
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| 134 |
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| 135 | Written by David J. MacKenzie and Akim Demaille.
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| 136 | ";
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| 137 |
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| 138 |
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| 139 |
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| 140 |
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| 141 | ## ------------------------ ##
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| 142 | ## Command line interface. ##
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| 143 | ## ------------------------ ##
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| 144 |
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| 145 | # parse_args ()
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| 146 | # -------------
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| 147 | # Process any command line arguments.
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| 148 | sub parse_args ()
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| 149 | {
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| 150 | getopt ('I|include=s' => \@include,
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| 151 | 'B|prepend-include=s' => \@prepend_include);
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| 152 |
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| 153 | die "$me: too many arguments
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| 154 | Try `$me --help' for more information.\n"
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| 155 | if @ARGV > 1;
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| 156 |
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| 157 | my $srcdir = $ARGV[0] || ".";
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| 158 |
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| 159 | verb "srcdir = $srcdir";
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| 160 | chdir $srcdir || error "cannot cd to $srcdir: $!";
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| 161 | }
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| 162 |
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| 163 |
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| 164 | # init_tables ()
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| 165 | # --------------
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| 166 | # Put values in the tables of what to do with each token.
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| 167 | sub init_tables ()
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| 168 | {
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| 169 | # The data file format supports only one line of macros per function.
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| 170 | # If more than that is required for a common portability problem,
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| 171 | # a new Autoconf macro should probably be written for that case,
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| 172 | # instead of duplicating the code in lots of configure.ac files.
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| 173 | my $file = find_file ("autoscan/autoscan.list",
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| 174 | reverse (@prepend_include), @include);
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| 175 | my $table = new Autom4te::XFile $file;
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| 176 | my $tables_are_consistent = 1;
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| 177 |
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| 178 | while ($_ = $table->getline)
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| 179 | {
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| 180 | # Ignore blank lines and comments.
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| 181 | next
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| 182 | if /^\s*$/ || /^\s*\#/;
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| 183 |
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| 184 | # '<kind>: <word> <macro invocation>' or...
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| 185 | # '<kind>: <word> warn: <message>'.
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| 186 | if (/^(\S+):\s+(\S+)\s+(\S.*)$/)
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| 187 | {
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| 188 | my ($kind, $word, $macro) = ($1, $2, $3);
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| 189 | error "$file:$.: invalid kind: $_"
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| 190 | unless grep { $_ eq $kind } @kinds;
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| 191 | push @{$macro{$kind}{$word}}, $macro;
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| 192 | }
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| 193 | else
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| 194 | {
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| 195 | error "$file:$.: invalid definition: $_";
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| 196 | }
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| 197 | }
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| 198 |
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| 199 | if ($debug)
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| 200 | {
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| 201 | foreach my $kind (@kinds)
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| 202 | {
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| 203 | foreach my $word (sort keys %{$macro{$kind}})
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| 204 | {
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| 205 | print "$kind: $word: @{$macro{$kind}{$word}}\n";
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| 206 | }
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| 207 | }
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| 208 |
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| 209 | }
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| 210 | }
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| 211 |
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| 212 |
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| 213 | # used ($KIND, $WORD, [$WHERE])
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| 214 | # -----------------------------
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| 215 | # $WORD is used as a $KIND.
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| 216 | sub used ($$;$)
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| 217 | {
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| 218 | my ($kind, $word, $where) = @_;
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| 219 | $where ||= "$File::Find::name:$.";
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| 220 | if (
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| 221 | # Check for all the libraries. But `-links' is certainly a
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| 222 | # `find' argument, and `-le', a `test' argument.
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| 223 | ($kind eq 'library' && $word !~ /^(e|inks)$/)
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| 224 | # Other than libraries are to be checked only if listed in
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| 225 | # the Autoscan library files.
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| 226 | || defined $macro{$kind}{$word}
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| 227 | )
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| 228 | {
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| 229 | push (@{$used{$kind}{$word}}, $where);
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| 230 | }
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| 231 | }
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| 232 |
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| 233 |
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| 234 |
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| 235 | ## ----------------------- ##
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| 236 | ## Scanning source files. ##
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| 237 | ## ----------------------- ##
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| 238 |
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| 239 |
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| 240 | # scan_c_file ($FILE-NAME)
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| 241 | # ------------------------
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| 242 | sub scan_c_file ($)
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| 243 | {
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| 244 | my ($file_name) = @_;
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| 245 | push @cfiles, $File::Find::name;
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| 246 |
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| 247 | # Nonzero if in a multiline comment.
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| 248 | my $in_comment = 0;
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| 249 |
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| 250 | my $file = new Autom4te::XFile "<$file_name";
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| 251 |
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| 252 | while ($_ = $file->getline)
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| 253 | {
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| 254 | # Strip out comments.
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| 255 | if ($in_comment && s,^.*?\*/,,)
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| 256 | {
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| 257 | $in_comment = 0;
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| 258 | }
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| 259 | # The whole line is inside a commment.
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| 260 | next if $in_comment;
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| 261 | # All on one line.
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| 262 | s,/\*.*?\*/,,g;
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| 263 |
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| 264 | # Starting on this line.
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| 265 | if (s,/\*.*$,,)
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| 266 | {
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| 267 | $in_comment = 1;
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| 268 | }
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| 269 |
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| 270 | # Preprocessor directives.
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| 271 | if (s/^\s*\#\s*//)
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| 272 | {
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| 273 | if (/^include\s*<([^>]*)>/)
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| 274 | {
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| 275 | used ('header', $1);
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| 276 | }
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| 277 | if (s/^(if|ifdef|ifndef|elif)\s+//)
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| 278 | {
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| 279 | foreach my $word (split (/\W+/))
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| 280 | {
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| 281 | used ('identifier', $word)
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| 282 | unless $word eq 'defined' || $word !~ /^[a-zA-Z_]/;
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| 283 | }
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| 284 | }
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| 285 | # Ignore other preprocessor directives.
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| 286 | next;
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| 287 | }
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| 288 |
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| 289 | # Remove string and character constants.
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| 290 | s,\"[^\"]*\",,g;
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| 291 | s,\'[^\']*\',,g;
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| 292 |
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| 293 | # Tokens in the code.
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| 294 | # Maybe we should ignore function definitions (in column 0)?
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| 295 | while (s/\b([a-zA-Z_]\w*)\s*\(/ /)
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| 296 | {
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| 297 | used ('function', $1);
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| 298 | }
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| 299 | while (s/\b([a-zA-Z_]\w*)\b/ /)
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| 300 | {
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| 301 | used ('identifier', $1);
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| 302 | }
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| 303 | }
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| 304 |
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| 305 | $file->close;
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| 306 | }
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| 307 |
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| 308 |
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| 309 | # scan_makefile($MAKEFILE-NAME)
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| 310 | # -----------------------------
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| 311 | sub scan_makefile ($)
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| 312 | {
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| 313 | my ($file_name) = @_;
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| 314 | push @makefiles, $File::Find::name;
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| 315 |
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| 316 | my $file = new Autom4te::XFile "<$file_name";
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| 317 |
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| 318 | while ($_ = $file->getline)
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| 319 | {
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| 320 | # Strip out comments.
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| 321 | s/#.*//;
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| 322 |
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| 323 | # Variable assignments.
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| 324 | while (s/\b([a-zA-Z_]\w*)\s*=/ /)
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| 325 | {
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| 326 | used ('makevar', $1);
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| 327 | }
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| 328 | # Be sure to catch a whole word. For instance `lex$U.$(OBJEXT)'
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| 329 | # is a single token. Otherwise we might believe `lex' is needed.
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| 330 | foreach my $word (split (/\s+/))
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| 331 | {
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| 332 | # Libraries.
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| 333 | if ($word =~ /^-l([a-zA-Z_]\w*)$/)
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| 334 | {
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| 335 | used ('library', $1);
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| 336 | }
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| 337 | # Tokens in the code.
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| 338 | # We allow some additional characters, e.g., `+', since
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| 339 | # autoscan/programs includes `c++'.
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| 340 | if ($word =~ /^[a-zA-Z_][\w+]*$/)
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| 341 | {
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| 342 | used ('program', $word);
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| 343 | }
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| 344 | }
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| 345 | }
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| 346 |
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| 347 | $file->close;
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| 348 | }
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| 349 |
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| 350 |
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| 351 | # scan_sh_file($SHELL-SCRIPT-NAME)
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| 352 | # --------------------------------
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| 353 | sub scan_sh_file ($)
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| 354 | {
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| 355 | my ($file_name) = @_;
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| 356 | push @shfiles, $File::Find::name;
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| 357 |
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| 358 | my $file = new Autom4te::XFile "<$file_name";
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| 359 |
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| 360 | while ($_ = $file->getline)
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| 361 | {
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| 362 | # Strip out comments and variable references.
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| 363 | s/#.*//;
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| 364 | s/\${[^\}]*}//g;
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| 365 | s/@[^@]*@//g;
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| 366 |
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| 367 | # Tokens in the code.
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| 368 | while (s/\b([a-zA-Z_]\w*)\b/ /)
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| 369 | {
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| 370 | used ('program', $1);
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| 371 | }
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| 372 | }
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| 373 |
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| 374 | $file->close;
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| 375 | }
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| 376 |
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| 377 |
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| 378 | # scan_file ()
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| 379 | # ------------
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| 380 | # Called by &find on each file. $_ contains the current file name with
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| 381 | # the current directory of the walk through.
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| 382 | sub scan_file ()
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| 383 | {
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| 384 | # Wanted only if there is no corresponding FILE.in.
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| 385 | return
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| 386 | if -f "$_.in";
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| 387 |
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| 388 | # Save $_ as Find::File requires it to be preserved.
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| 389 | local $_ = $_;
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| 390 |
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| 391 | # Strip a useless leading `./'.
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| 392 | $File::Find::name =~ s,^\./,,;
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| 393 |
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| 394 | if ($_ ne '.' and -d $_ and
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| 395 | -f "$_/configure.in" ||
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| 396 | -f "$_/configure.ac" ||
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| 397 | -f "$_/configure.gnu" ||
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| 398 | -f "$_/configure")
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| 399 | {
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| 400 | $File::Find::prune = 1;
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| 401 | push @subdirs, $File::Find::name;
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| 402 | }
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| 403 | if (/\.[chlym](\.in)?$/)
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| 404 | {
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| 405 | used 'program', 'cc', $File::Find::name;
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| 406 | scan_c_file ($_);
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| 407 | }
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| 408 | elsif (/\.(cc|cpp|cxx|CC|C|hh|hpp|hxx|HH|H|yy|ypp|ll|lpp)(\.in)?$/)
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| 409 | {
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| 410 | used 'program', 'c++', $File::Find::name;
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| 411 | scan_c_file ($_);
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| 412 | }
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| 413 | elsif ((/^((?:GNUm|M|m)akefile)(\.in)?$/ && ! -f "$1.am")
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| 414 | || /^(?:GNUm|M|m)akefile(\.am)?$/)
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| 415 | {
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| 416 | scan_makefile ($_);
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| 417 | }
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| 418 | elsif (/\.sh(\.in)?$/)
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| 419 | {
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| 420 | scan_sh_file ($_);
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| 421 | }
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| 422 | }
|
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| 423 |
|
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| 424 |
|
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| 425 | # scan_files ()
|
|---|
| 426 | # -------------
|
|---|
| 427 | # Read through the files and collect lists of tokens in them
|
|---|
| 428 | # that might create nonportabilities.
|
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| 429 | sub scan_files ()
|
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| 430 | {
|
|---|
| 431 | find (\&scan_file, '.');
|
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| 432 |
|
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| 433 | if ($verbose)
|
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| 434 | {
|
|---|
| 435 | print "cfiles: @cfiles\n";
|
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| 436 | print "makefiles: @makefiles\n";
|
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| 437 | print "shfiles: @shfiles\n";
|
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| 438 |
|
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| 439 | foreach my $kind (@kinds)
|
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| 440 | {
|
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| 441 | print "\n$kind:\n";
|
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| 442 | foreach my $word (sort keys %{$used{$kind}})
|
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| 443 | {
|
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| 444 | print "$word: @{$used{$kind}{$word}}\n";
|
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| 445 | }
|
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| 446 | }
|
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| 447 | }
|
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| 448 | }
|
|---|
| 449 |
|
|---|
| 450 |
|
|---|
| 451 | ## ----------------------- ##
|
|---|
| 452 | ## Output configure.scan. ##
|
|---|
| 453 | ## ----------------------- ##
|
|---|
| 454 |
|
|---|
| 455 |
|
|---|
| 456 | # output_kind ($FILE, $KIND)
|
|---|
| 457 | # --------------------------
|
|---|
| 458 | sub output_kind ($$)
|
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| 459 | {
|
|---|
| 460 | my ($file, $kind) = @_;
|
|---|
| 461 | # Lists of words to be checked with the generic macro.
|
|---|
| 462 | my @have;
|
|---|
| 463 |
|
|---|
| 464 | print $file "\n# $kind_comment{$kind}\n"
|
|---|
| 465 | if exists $kind_comment{$kind};
|
|---|
| 466 | foreach my $word (sort keys %{$used{$kind}})
|
|---|
| 467 | {
|
|---|
| 468 | # Output the needed macro invocations in $configure_scan if not
|
|---|
| 469 | # already printed, and remember these macros are needed.
|
|---|
| 470 | foreach my $macro (@{$macro{$kind}{$word}})
|
|---|
| 471 | {
|
|---|
| 472 | if ($macro =~ /^warn:\s+(.*)/)
|
|---|
| 473 | {
|
|---|
| 474 | my $message = $1;
|
|---|
| 475 | foreach my $location (@{$used{$kind}{$word}})
|
|---|
| 476 | {
|
|---|
| 477 | warn "$location: warning: $message\n";
|
|---|
| 478 | }
|
|---|
| 479 | }
|
|---|
| 480 | elsif (exists $generic_macro{$kind}
|
|---|
| 481 | && $macro eq $generic_macro{$kind})
|
|---|
| 482 | {
|
|---|
| 483 | push (@have, $word);
|
|---|
| 484 | push (@{$needed_macros{"$generic_macro{$kind}([$word])"}},
|
|---|
| 485 | @{$used{$kind}{$word}});
|
|---|
| 486 | }
|
|---|
| 487 | else
|
|---|
| 488 | {
|
|---|
| 489 | if (! $printed{$macro})
|
|---|
| 490 | {
|
|---|
| 491 | print $file "$macro\n";
|
|---|
| 492 | $printed{$macro} = 1;
|
|---|
| 493 | }
|
|---|
| 494 | push (@{$needed_macros{$macro}},
|
|---|
| 495 | @{$used{$kind}{$word}});
|
|---|
| 496 | }
|
|---|
| 497 | }
|
|---|
| 498 | }
|
|---|
| 499 | print $file "$generic_macro{$kind}([" . join(' ', sort(@have)) . "])\n"
|
|---|
| 500 | if @have;
|
|---|
| 501 | }
|
|---|
| 502 |
|
|---|
| 503 |
|
|---|
| 504 | # output_libraries ($FILE)
|
|---|
| 505 | # ------------------------
|
|---|
| 506 | sub output_libraries ($)
|
|---|
| 507 | {
|
|---|
| 508 | my ($file) = @_;
|
|---|
| 509 |
|
|---|
| 510 | print $file "\n# Checks for libraries.\n";
|
|---|
| 511 | foreach my $word (sort keys %{$used{'library'}})
|
|---|
| 512 | {
|
|---|
| 513 | print $file "# FIXME: Replace `main' with a function in `-l$word':\n";
|
|---|
| 514 | print $file "AC_CHECK_LIB([$word], [main])\n";
|
|---|
| 515 | }
|
|---|
| 516 | }
|
|---|
| 517 |
|
|---|
| 518 |
|
|---|
| 519 | # output ($CONFIGURE_SCAN)
|
|---|
| 520 | # ------------------------
|
|---|
| 521 | # Print a proto configure.ac.
|
|---|
| 522 | sub output ($)
|
|---|
| 523 | {
|
|---|
| 524 | my $configure_scan = shift;
|
|---|
| 525 | my %unique_makefiles;
|
|---|
| 526 |
|
|---|
| 527 | my $file = new Autom4te::XFile ">$configure_scan";
|
|---|
| 528 |
|
|---|
| 529 | print $file
|
|---|
| 530 | ("# -*- Autoconf -*-\n" .
|
|---|
| 531 | "# Process this file with autoconf to produce a configure script.\n" .
|
|---|
| 532 | "\n" .
|
|---|
| 533 | "AC_PREREQ(@VERSION@)\n" .
|
|---|
| 534 | "AC_INIT(FULL-PACKAGE-NAME, VERSION, BUG-REPORT-ADDRESS)\n");
|
|---|
| 535 | if (defined $cfiles[0])
|
|---|
| 536 | {
|
|---|
| 537 | print $file "AC_CONFIG_SRCDIR([$cfiles[0]])\n";
|
|---|
| 538 | print $file "AC_CONFIG_HEADER([config.h])\n";
|
|---|
| 539 | }
|
|---|
| 540 |
|
|---|
| 541 | output_kind ($file, 'program');
|
|---|
| 542 | output_kind ($file, 'makevar');
|
|---|
| 543 | output_libraries ($file);
|
|---|
| 544 | output_kind ($file, 'header');
|
|---|
| 545 | output_kind ($file, 'identifier');
|
|---|
| 546 | output_kind ($file, 'function');
|
|---|
| 547 |
|
|---|
| 548 | print $file "\n";
|
|---|
| 549 | if (@makefiles)
|
|---|
| 550 | {
|
|---|
| 551 | # Change DIR/Makefile.in to DIR/Makefile.
|
|---|
| 552 | foreach my $m (@makefiles)
|
|---|
| 553 | {
|
|---|
| 554 | $m =~ s/\.(?:in|am)$//;
|
|---|
| 555 | $unique_makefiles{$m}++;
|
|---|
| 556 | }
|
|---|
| 557 | print $file ("AC_CONFIG_FILES([",
|
|---|
| 558 | join ("\n ",
|
|---|
| 559 | sort keys %unique_makefiles), "])\n");
|
|---|
| 560 | }
|
|---|
| 561 | if (@subdirs)
|
|---|
| 562 | {
|
|---|
| 563 | print $file ("AC_CONFIG_SUBDIRS([",
|
|---|
| 564 | join ("\n ",
|
|---|
| 565 | sort @subdirs), "])\n");
|
|---|
| 566 | }
|
|---|
| 567 | print $file "AC_OUTPUT\n";
|
|---|
| 568 |
|
|---|
| 569 | $file->close;
|
|---|
| 570 | }
|
|---|
| 571 |
|
|---|
| 572 |
|
|---|
| 573 |
|
|---|
| 574 | ## --------------------------------------- ##
|
|---|
| 575 | ## Checking the accuracy of configure.ac. ##
|
|---|
| 576 | ## --------------------------------------- ##
|
|---|
| 577 |
|
|---|
| 578 |
|
|---|
| 579 | # &check_configure_ac ($CONFIGURE_AC)
|
|---|
| 580 | # -----------------------------------
|
|---|
| 581 | # Use autoconf to check if all the suggested macros are included
|
|---|
| 582 | # in CONFIGURE_AC.
|
|---|
| 583 | sub check_configure_ac ($)
|
|---|
| 584 | {
|
|---|
| 585 | my ($configure_ac) = @_;
|
|---|
| 586 |
|
|---|
| 587 | # Find what needed macros are invoked in CONFIGURE_AC.
|
|---|
| 588 | # I'd be very happy if someone could explain to me why sort (uniq ...)
|
|---|
| 589 | # doesn't work properly: I need `uniq (sort ...)'. --akim
|
|---|
| 590 | my $trace_option =
|
|---|
| 591 | join (' --trace=', '',
|
|---|
| 592 | uniq (sort (map { s/\(.*//; $_ } keys %needed_macros)));
|
|---|
| 593 |
|
|---|
| 594 | verb "running: $autoconf $trace_option $configure_ac";
|
|---|
| 595 | my $traces =
|
|---|
| 596 | new Autom4te::XFile "$autoconf $trace_option $configure_ac|";
|
|---|
| 597 |
|
|---|
| 598 | while ($_ = $traces->getline)
|
|---|
| 599 | {
|
|---|
| 600 | chomp;
|
|---|
| 601 | my ($file, $line, $macro, @args) = split (/:/, $_);
|
|---|
| 602 | if ($macro =~ /^AC_CHECK_(HEADER|FUNC|TYPE|MEMBER)S$/)
|
|---|
| 603 | {
|
|---|
| 604 | # To be rigorous, we should distinguish between space and comma
|
|---|
| 605 | # separated macros. But there is no point.
|
|---|
| 606 | foreach my $word (split (/\s|,/, $args[0]))
|
|---|
| 607 | {
|
|---|
| 608 | # AC_CHECK_MEMBERS wants `struct' or `union'.
|
|---|
| 609 | if ($macro eq "AC_CHECK_MEMBERS"
|
|---|
| 610 | && $word =~ /^stat.st_/)
|
|---|
| 611 | {
|
|---|
| 612 | $word = "struct " . $word;
|
|---|
| 613 | }
|
|---|
| 614 | delete $needed_macros{"$macro([$word])"};
|
|---|
| 615 | }
|
|---|
| 616 | }
|
|---|
| 617 | else
|
|---|
| 618 | {
|
|---|
| 619 | delete $needed_macros{$macro};
|
|---|
| 620 | }
|
|---|
| 621 | }
|
|---|
| 622 |
|
|---|
| 623 | $traces->close;
|
|---|
| 624 |
|
|---|
| 625 | # Report the missing macros.
|
|---|
| 626 | foreach my $macro (sort keys %needed_macros)
|
|---|
| 627 | {
|
|---|
| 628 | warn ("$configure_ac: warning: missing $macro wanted by: "
|
|---|
| 629 | . (${$needed_macros{$macro}}[0])
|
|---|
| 630 | . "\n");
|
|---|
| 631 | print $log "$me: warning: missing $macro wanted by: \n";
|
|---|
| 632 | foreach my $need (@{$needed_macros{$macro}})
|
|---|
| 633 | {
|
|---|
| 634 | print $log "\t$need\n";
|
|---|
| 635 | }
|
|---|
| 636 | }
|
|---|
| 637 | }
|
|---|
| 638 |
|
|---|
| 639 |
|
|---|
| 640 | ## -------------- ##
|
|---|
| 641 | ## Main program. ##
|
|---|
| 642 | ## -------------- ##
|
|---|
| 643 |
|
|---|
| 644 | parse_args;
|
|---|
| 645 | $log = new Autom4te::XFile ">$me.log";
|
|---|
| 646 |
|
|---|
| 647 | $autoconf .= " --debug" if $debug;
|
|---|
| 648 | $autoconf .= " --verbose" if $verbose;
|
|---|
| 649 | $autoconf .= join (' --include=', '', @include);
|
|---|
| 650 | $autoconf .= join (' --prepend-include=', '', @prepend_include);
|
|---|
| 651 |
|
|---|
| 652 | my $configure_ac = find_configure_ac;
|
|---|
| 653 | init_tables;
|
|---|
| 654 | scan_files;
|
|---|
| 655 | output ('configure.scan');
|
|---|
| 656 | if (-f $configure_ac)
|
|---|
| 657 | {
|
|---|
| 658 | check_configure_ac ($configure_ac);
|
|---|
| 659 | }
|
|---|
| 660 | # This close is really needed. For some reason, probably best named
|
|---|
| 661 | # a bug, it seems that the dtor of $LOG is not called automatically
|
|---|
| 662 | # at END. It results in a truncated file.
|
|---|
| 663 | $log->close;
|
|---|
| 664 | exit 0;
|
|---|
| 665 |
|
|---|
| 666 | ### Setup "GNU" style for perl-mode and cperl-mode.
|
|---|
| 667 | ## Local Variables:
|
|---|
| 668 | ## perl-indent-level: 2
|
|---|
| 669 | ## perl-continued-statement-offset: 2
|
|---|
| 670 | ## perl-continued-brace-offset: 0
|
|---|
| 671 | ## perl-brace-offset: 0
|
|---|
| 672 | ## perl-brace-imaginary-offset: 0
|
|---|
| 673 | ## perl-label-offset: -2
|
|---|
| 674 | ## cperl-indent-level: 2
|
|---|
| 675 | ## cperl-brace-offset: 0
|
|---|
| 676 | ## cperl-continued-brace-offset: 0
|
|---|
| 677 | ## cperl-label-offset: -2
|
|---|
| 678 | ## cperl-extra-newline-before-brace: t
|
|---|
| 679 | ## cperl-merge-trailing-else: nil
|
|---|
| 680 | ## cperl-continued-statement-offset: 2
|
|---|
| 681 | ## End:
|
|---|
