tagtrace test: skip for older autoconf version

[Ralf Wildenhues]

OK to apply?

To expose: bootstrap with Autoconf CVS, then put 2.59 only in your PATH,
then
  make check TESTS=tests/tagtrace.test VERBOSE=x TESTSUITE_FLAGS=-V

It works the other way round, by the way.

Cheers,
Ralf

Index: tests/tagtrace.test
===================================================================
RCS file: /cvsroot/libtool/libtool/tests/tagtrace.test,v
retrieving revision 1.7
diff -u -r1.7 tagtrace.test
--- tests/tagtrace.test 22 Apr 2005 10:10:30 -0000      1.7
+++ tests/tagtrace.test 26 Oct 2005 13:06:15 -0000
@@ -32,6 +32,12 @@
   func_skip "This test requires write access to the source tree"
 fi
 
+if ( cd "$srcdir" && "$AUTOCONF" --trace 'LT_SUPPORTED_TAG:$1' ) 2>&1 
>/dev/null |
+     grep "Autoconf version .*is required" >/dev/null; then
+  func_error "This test requires an Autoconf version at least as new"
+  func_skip  "as the one that was used to bootstrap Libtool"
+fi
+
 # Abort as soon as something fails.
 set -e