[Bug other/23430] New: configure should allow --comment option

[flash at pobox dot com]

When trying to keep track of various builds of GCC, it would be convenient to be able to store a 
comment to be read back with -v.  Since -v echoes the full configure command line, all that's required 
is not rejecting an argument containing the desired comment.
    I'll upload a patch which permits this.  All it does is add a --comment option which does nothing; it's 
just seventeen copies of the following, one for each configure file:

  --comment=*)
     ;;                #Do nothing; this is just so that the comment will show up with -v. 

    There may be an easier way for maintainers to patch this, using auto-configuration; but I've never 
run that.  There are workarounds, such as embedding configuration information into directory names, 
but this approach seems simpler.
    A patched checking=yes build passed make check. 

Sample Session:
32> /opt2/gcc401-chk-all-4p/bin/g++ -v
Using built-in specs.
Target: i686-pc-linux-gnu
Configured with: /opt2/gcc-4.0.1-src/configure --enable-checking=all --prefix=/opt2/gcc401-chk-
all-4p/ --enable-languages=c,c++ --comment=PalmSource checking=all build by Flash Sheridan 
2005-08-11 via distcc.  Patches 20161-8277, 22508-2005-08-00326, 22600-9330, 
22604-2005-08-00334, plus a local patch to seventeen versions of configure to allow this comment.
Thread model: posix
gcc version 4.0.1

-- 
           Summary: configure should allow --comment option
           Product: gcc
           Version: 4.0.1
            Status: UNCONFIRMED
          Severity: enhancement
          Priority: P2
         Component: other
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: flash at pobox dot com
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23430