Re: autoconf-2.50 feedback

[Mo DeJong]

On 15 Jun 2001, Akim Demaille wrote:

> But I can tell you the tests are much better now, so I think it
> deserves this difference.  Have a look at config.log too.  The point
> is really to let the maintainer find everything she needs in there.
> And BTW, if you lack some information in it, ask for it!

Well, since you asked. It would really help if the compiler
revision appeared in the config.log file. This patch makes
gcc or g++ dump the output of "gcc --version" and "gcc -v"
to config.log. I am not saying this is pretty, but it works.
I think I posted this some time ago but it never made it
into the code.

Mo DeJong
Red Hat Inc

Index: aclang.m4
===================================================================
RCS file: /cvs/autoconf/aclang.m4,v
retrieving revision 1.128
diff -u -r1.128 aclang.m4
--- aclang.m4   2001/05/11 15:54:43     1.128
+++ aclang.m4   2001/06/15 08:52:08
@@ -550,6 +550,19 @@
                    [ac_compiler_gnu=yes],
                    [ac_compiler_gnu=no])
 ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu=$ac_compiler_gnu
+# Add the GNU compiler revision to the log file
+if test "x$ac_compiler_gnu" = "xyes" ; then
+    # This is kind of nasty, but I could not find
+    # any other way to get the name of the compiler
+    # that would work for both CC and CXX.
+    for compiler in $ac_compile ; do
+        break
+    done
+    echo "Gnu Compiler Revision:" >&AS_MESSAGE_LOG_FD
+    eval "$compiler --version >&AS_MESSAGE_LOG_FD"
+    echo "" >&AS_MESSAGE_LOG_FD
+    eval "$compiler -v 2>&AS_MESSAGE_LOG_FD"
+fi
 ])])# _AC_LANG_COMPILER_GNU