Re: Patch to record GCC revision in config.log

[Akim Demaille]

>>>>> "Mo" == Mo DeJong <address@hidden> writes:

Mo> Hello.  Here is a little patch that will record the revision of a
Mo> GNU compiler if one is detected in _AC_LANG_COMPILER_GNU. It is
Mo> common for a user to report a build problem and not include the
Mo> rev of the compiler they are using. By recording this info in
Mo> config.log, we save ourselves the hassle of tracking the user down
Mo> and having them run "gcc -v" at the command line.

I agree very much.  Didn't do it yet because I would prefer a generic
solution, not just for GCC (but for AC_PATH_PROG etc.).  Still, there
are probably problems tuning a generic solution, so as a first step
it's OK.

Still, the implementation is bizarre:

+    for compiler in $ac_compile ; do
+        break
+    done


first it's wrong: $compiler is not in the Autoconf name space.  I'd
suggest

ac_compiler=`set X $ac_compile; echo "$2"`.

Thanks, I'll apply it.