empty TIMESTAMP, stamp-vcl

[Eric Blake]

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I still hope to incorporate the ideas in libtool so that m4 no longer
requires GNU make
(http://lists.gnu.org/archive/html/libtool-patches/2007-03/msg00048.html).
In the meantime, I have been playing with git, which does not expand RCS
keywords, and that exposed a testsuite bug.  So part of fixing stamp-vcl
will be figuring out how to have a sane TIMESTAMP variable regardless of
whether the repository is from CVS or from git (I'm thinking of having
mkstamp recognize whether m4/CVS or m4/.git exists, and continue to use
the RCS Revision of ChangeLog in CVS, but the first few characters of the
hash in 'git ls-tree HEAD ChangeLog' in git).  In the meantime, here's the
testsuite fix.  And I'll check with Jim Meyering about how he got
coreutils.git hosted on savannah.

2007-03-28  Eric Blake  <address@hidden>

        * tests/builtins.at (__m4_version__): Fix bug when TIMESTAMP is
        empty.

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

Eric Blake             address@hidden
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Index: tests/builtins.at
===================================================================
RCS file: /sources/m4/m4/tests/builtins.at,v
retrieving revision 1.38
diff -u -p -r1.38 builtins.at
--- tests/builtins.at   28 Feb 2007 14:36:22 -0000      1.38
+++ tests/builtins.at   28 Mar 2007 11:39:47 -0000
@@ -80,7 +80,7 @@ AT_SETUP([__m4_@&address@hidden)
 AT_DATA([in], [[__m4_version__
 ]])
 AT_CHECK_M4([--version], [0], [stdout])
-AT_CHECK([[sed -e 's/.*(GNU M4 \(.*\)) \([^ ]*\).*/\2 \1/;q' < stdout]],
+AT_CHECK([[sed -e 's/.*(GNU M4\(.*\)) \([^ ]*\).*/\2\1/;q' < stdout]],
 [0], [stdout])
 mv stdout expout
 AT_CHECK_M4([in], [0], [expout])