twm: Changes to 'master'

[Gaetan Nadon]

 configure.ac |    2 ++
 1 file changed, 2 insertions(+)

New commits:
commit 29a157f7f181ac02c88537032dbcca29880c3068
Author: Gaetan Nadon <memsize at videotron.ca>
Date:   Fri Jun 4 17:09:18 2010 -0400

    config: add check for yacc to insure it is installed #27973
    
    Unlike other macros AC_PROG_YACC sets the YACC variable to "yacc"
    as a last resort, even if no programs have been found. Improve error
    checking by issuing an error message if yacc is not found. The module
    cannot build anyway.
    
    Signed-off-by: Gaetan Nadon <memsize at videotron.ca>