Re: git autoconf build is failing tests

[Eric Blake]

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According to Bob Proulx on 11/10/2008 6:31 PM:
>> Which version of m4 are you running?  I tested with m4.git branch-1.6, and
>> didn't see this failure.
> 
>   $ m4 --version
>   GNU M4 1.4.8

I downgraded, and I can reproduce a different crash on cygwin, so it looks
like we're now tickling a m4 memory corruption bug:

10. tools.at:417: testing ...
./tools.at:427: autoconf --force
- --- /dev/null   2006-11-30 17:00:00.000000000 -0700
+++ /home/eblake/autoconf/tests/testsuite.dir/at-groups/10/stderr
2008-11-
10 19:46:59.750000000 -0700
@@ -0,0 +1,5 @@
+configure.ac:1: warning: AC_DEFINE: not an identifier: h<CB>"
+configure.ac:3: warning: AC_DEFINE: not an identifier: h<CB>"
+configure.ac:3: error: possibly undefined macro: FB_ONE
+      If this token and others are legitimate, please use m4_pattern_allow.
+      See the Autoconf documentation.
./tools.at:427: exit code was 1, expected 0

Meanwhile, m4 1.4.11 passed.  I'm in the middle of bisecting which
autoconf patch tickled the bug, and which m4 release fixed it.

- --
Don't work too hard, make some time for fun as well!

Eric Blake             address@hidden
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