aclocal.m4's AU_DEFUNs are discarded by autoupdate

[Alexandre Duret-Lutz]

Why does autoupdate explicitly ignore AU_DEFUNed symbols in
aclocal.m4?  This prevents third party tools (such as Automake)
from provinging there own autoupdatable macros.

Let's quote the wonderful error message (for the sake of future
google users):

% autoupdate -f
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Cannot open [m4.m4]: No such file or 
directory
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Cannot open [m4sugar/m4sugar.m4]: No 
such file or directory
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Cannot open [ac.m4]: No such file or 
directory
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Warning: Excess arguments to built-in 
`_au_ifdef' ignored
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Cannot open [unac.m4]: No such file or 
directory
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Cannot open [unm4.m4]: No such file or 
directory
/tmp/auTpvVJ8/input.m4:103: /usr/bin/m4: Warning: Excess arguments to built-in 
`_au_ifdef' ignored
autoupdate: `configure.in' is updated


2002-04-18  Alexandre Duret-Lutz  <address@hidden>

        * bin/autoupdate.in (handle_autoconf_macros): Don't ignore traces
        from aclocal.m4, so that its AU_DEFUNs get quoted too.

Index: bin/autoupdate.in
===================================================================
RCS file: /cvsroot/autoconf/autoconf/bin/autoupdate.in,v
retrieving revision 1.31
diff -u -r1.31 autoupdate.in
--- bin/autoupdate.in   8 Mar 2002 11:46:31 -0000       1.31
+++ bin/autoupdate.in   18 Apr 2002 20:45:54 -0000
@@ -167,12 +167,11 @@
       my ($domain, $file, $macro) = /^(AC|AU):(.*):([^:]*)$/ or next;
       # ../lib/m4sugar/m4sugar.m4  -> m4sugar
       # ../lib/autoconf/general.m4 -> autoconf
-      # aclocal.m4 -> ignore
-      next
-       if $file eq 'aclocal.m4';
+      # aclocal.m4 -> aclocal
       my $set = basename (dirname ($file));
+      $set = 'aclocal' if $file eq 'aclocal.m4';
       die "$me: unknown set: $set: $_\n"
-       unless $set =~ /^(m4sugar|autoconf)$/;
+       unless $set =~ /^(m4sugar|aclocal|autoconf)$/;
       if ($domain eq "AC")
        {
          $ac_macros{$macro} = $set;
-- 
Alexandre Duret-Lutz