# Include paths for searching macros. We search macros in this order:
# user-supplied directories first, then the directory containing the
# automake macros, and finally the system-wide directories for
-# third-party macro. @user_includes can be augmented with -I.
-# @system_includes can be augmented with the `dirlist' file. Also
-# --acdir will reset both @automake_includes and @system_includes.
+# third-party macros.
+# @user_includes can be augmented with -I.
+# @automake_includes can be reset with the `--automake-acdir' option.
+# @system_includes can be augmented with the `dirlist' file or the
+# ACLOCAL_PATH environment variable, and reset with the `--system-acdir'
+# option.
my @user_includes = ();
my @automake_includes = ("@datadir@/aclocal-$APIVERSION");
my @system_includes = ('@datadir@/aclocal');
{
msg ('syntax', "$file:$.", "underquoted definition of $2"
. "\n run info Automake 'Extending aclocal'\n"
- . " or see http://sources.redhat.com/automake/"
+ . " or see http://www.gnu.org/software/automake/manual/"
. "automake.html#Extending-aclocal")
unless $underquoted_manual_once;
$underquoted_manual_once = 1;
Generate `aclocal.m4' by scanning `configure.ac' or `configure.in'
Options:
- --acdir=DIR directory holding config files (for debugging)
+ --automake-acdir=DIR directory holding automake-provided m4 files
+ --system-acdir=DIR directory holding third-party system-wide files
--diff[=COMMAND] run COMMAND [diff -u] on M4 files that would be
changed (implies --install and --dry-run)
--dry-run pretend to, but do not actually update any file
-I DIR add directory to search list for .m4 files
--install copy third-party files to the first -I directory
--output=FILE put output in FILE (default aclocal.m4)
- --print-ac-dir print name of directory holding m4 files, then exit
+ --print-ac-dir print name of directory holding system-wide
+ third-party m4 files, then exit
--verbose don't be silent
--version print version number, then exit
-W, --warnings=CATEGORY report the warnings falling in CATEGORY
exit 0;
}
+# Using --acdir overrides both the automake (versioned) directory and
+# the public (unversioned) system directory. This usage is obsolete.
+sub handle_acdir_option ($$)
+{
+ msg 'obsolete', '', "`--acdir' is deprecated\n";
+ @system_includes = ($_[1]);
+ @automake_includes = ();
+}
+
# Parse command line.
sub parse_arguments ()
{
my %cli_options =
(
- 'acdir=s' => sub # Setting --acdir overrides both the
- { # automake (versioned) directory and the
- # public (unversioned) system directory.
- @automake_includes = ();
- @system_includes = ($_[1])
- },
+ 'acdir=s' => \&handle_acdir_option,
+ 'system-acdir=s' => sub { shift; @system_includes = @_; },
+ 'automake-acdir=s' => sub { shift; @automake_includes = @_; },
'diff:s' => \$diff_command,
'dry-run' => \$dry_run,
'force' => \$force_output,
. "\nfirst -I option, but no -I was supplied");
}
- if (! -d $system_includes[0])
+ # Finally, adds any directory listed in the `dirlist' file.
+ if (open (DIRLIST, "$system_includes[0]/dirlist"))
{
- # By default $(datadir)/aclocal doesn't exist. We don't want to
- # get an error in the case where we are searching the default
- # directory and it hasn't been created. (We know
- # @system_includes has its default value if @automake_includes
- # is not empty, because --acdir is the only way to change this.)
- @system_includes = () if @automake_includes;
+ while (<DIRLIST>)
+ {
+ # Ignore '#' lines.
+ next if /^#/;
+ # strip off newlines and end-of-line comments
+ s/\s*\#.*$//;
+ chomp;
+ foreach my $dir (glob)
+ {
+ push (@system_includes, $dir) if -d $dir;
+ }
+ }
+ close (DIRLIST);
}
- else
+}
+
+# Add any directory listed in the `ACLOCAL_PATH' environment variable
+# to the list of system include directories.
+sub parse_ACLOCAL_PATH ()
+{
+ return if not defined $ENV{"ACLOCAL_PATH"};
+ # Directories in ACLOCAL_PATH should take precedence over system
+ # directories, so we use unshift. However, directories that
+ # come first in ACLOCAL_PATH take precedence over directories
+ # coming later, which is why the result of split is reversed.
+ foreach my $dir (reverse split /:/, $ENV{"ACLOCAL_PATH"})
{
- # Finally, adds any directory listed in the `dirlist' file.
- if (open (DIRLIST, "$system_includes[0]/dirlist"))
- {
- while (<DIRLIST>)
- {
- # Ignore '#' lines.
- next if /^#/;
- # strip off newlines and end-of-line comments
- s/\s*\#.*$//;
- chomp;
- foreach my $dir (glob)
- {
- push (@system_includes, $dir) if -d $dir;
- }
- }
- close (DIRLIST);
- }
+ unshift (@system_includes, $dir) if $dir ne '' && -d $dir;
}
}
parse_WARNINGS; # Parse the WARNINGS environment variable.
parse_arguments;
+parse_ACLOCAL_PATH;
$configure_ac = require_configure_ac;
# We may have to rerun aclocal if some file have been installed, but
projects / platform / upstream / automake.git / blobdiff