twm: Changes to 'master'

[Alan Coopersmith]

 configure.ac    |    1 +
 src/Makefile.am |    2 +-
 src/menus.c     |    4 ++++
 src/twm.h       |    4 ++++
 4 files changed, 10 insertions(+), 1 deletion(-)

New commits:
commit 0f1ccd0b3409ab9b9fce1256fc59ad9bbe69a349
Author: Alan Coopersmith <alan.coopersmith at oracle.com>
Date:   Tue May 10 15:35:51 2011 -0700

    Fix: menus.c:2374: warning: implicit declaration of function `putenv`
    
    Ensure _GNU_SOURCE is defined on Linux builds before including <stdlib.h>
    so the prototype is exposed in the header properly.
    
    https://bugs.freedesktop.org/show_bug.cgi?id=32696
    
    Signed-off-by: Alan Coopersmith <alan.coopersmith at oracle.com>
    Reviewed-by: Julien Cristau <jcristau at debian.org>