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Re: [BUG] autoupdate vs aclocal m4_include

From: Noah Misch
Subject: Re: [BUG] autoupdate vs aclocal m4_include
Date: Mon, 3 Apr 2006 12:23:11 -0700
User-agent: Mutt/1.5.6i

Hi Gary,

On Fri, Nov 19, 2004 at 06:33:59AM +0000, Gary V. Vaughan wrote:
> This is Autoconf-2.59, Automake-1.9.2, CVS Libtool branch-2-0:
> Unless AC_CONFIG_MACRODIR is called aclocal or m4sugar, autoupdate
> complains about `unknown set' if aclocal.m4 uses m4_include.  The
> run still works, but there are several pages of spurious warnings.
> Here's a minimal repeat recipe:

Thanks for the report.  Here's a somewhat more minimal repeat recipe:

$ cat
$ cat m4/stuff.m4
AC_DEFUN([AC_NEW_MACRO], [echo hi])
$ ln -s m4 aclocal
$ aclocal -I aclocal
$ autoupdate
$ aclocal -I m4
$ autoupdate
autoupdate: unknown set: m4: AU:m4/stuff.m4:AC_OLD_MACRO
autoupdate: unknown set: m4: AU:m4/stuff.m4:_au_warn_AC_OLD_MACRO
autoupdate: unknown set: m4: AC:m4/stuff.m4:m4_location(AC_OLD_MACRO)
autoupdate: unknown set: m4: AC:m4/stuff.m4:AC_OLD_MACRO
autoupdate: unknown set: m4: AC:m4/stuff.m4:m4_location(AC_NEW_MACRO)
autoupdate: unknown set: m4: AC:m4/stuff.m4:AC_NEW_MACRO
autoupdate: unknown set: m4: AC:m4/stuff.m4:m4_location(AC_UNCHANGED_MACRO)
autoupdate: unknown set: m4: AC:m4/stuff.m4:AC_UNCHANGED_MACRO

`autoupdate' sanity checks the dirname of every file in which it locates a macro
definition.  Now that `aclocal' can m4_include macro files instead of copying
them into `aclocal.m4', the set of reasonable dirnames is not so constrained.  I
could not figure a need for a sanity check, so I just removed it.  It would be
good if someone more familiar with autoupdate could review this patch, however.

Note that naming a macro directory `m4sugar' causes autoupdate to misbehave,
because it treats macros therein like m4sugar macros.


2005-04-03  Noah Misch  <address@hidden>

        * bin/ (handle_autoconf_patches): Do not error on finding a
        macro defined in an unexpected directory.

diff -urp -X dontdiff ac-clean/bin/ ac-au_dirname/bin/
--- ac-clean/bin/  2006-04-01 10:58:43.000000000 -0500
+++ ac-au_dirname/bin/     2006-04-03 13:59:53.000000000 -0400
@@ -145,28 +145,19 @@ sub handle_autoconf_macros ()
       my ($domain, $file, $macro) = /^(AC|AU):(.*):([^:]*)$/ or next;
-      # ../lib/m4sugar/m4sugar.m4  -> m4sugar
-      # ../lib/m4sugar/version.m4  -> m4sugar
-      # ../lib/autoconf/general.m4 -> autoconf
-      # aclocal.m4 -> aclocal
-      # ../lib/m4sugar/m4sh.m4     -> m4sh
       my $set = basename (dirname ($file));
-      $set = 'aclocal' if $file eq 'aclocal.m4';
-      $set = 'm4sh' if basename($file) eq 'm4sh.m4';
-      error "unknown set: $set: $_"
-       unless $set =~ /^(m4sugar|m4sh|aclocal|autoconf)$/;
       if ($domain eq "AU")
          $au_macros{$macro} = 1;
-      elsif ($set eq "m4sugar")
+      elsif ($set eq "m4sugar" && basename ($file) ne 'm4sh.m4')
          # Add the m4sugar macros to m4_builtins.
          $m4_builtins{$macro} = 1;
-         # Autoconf, aclocal, and m4sh macros.
+         # All other macros.
          $ac_macros{$macro} = 1;

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