gnulib-lib/xalloc-oversized.h:45:0: warning: "xalloc_oversized" redefined

[Jeffrey Walton]

Hi Everyone,

Would someone please clear this warning before the next release. It is
prevalent in some packages, like iconv.

In file included from ../gnulib-lib/malloca.h:26:0,
                 from ../gnulib-lib/xmalloca.h:21,
                 from message.c:32:
../gnulib-lib/xalloc-oversized.h:45:0: warning: "xalloc_oversized" redefined
 # define xalloc_oversized(n, s) \

In file included from message.c:31:0:
../gnulib-lib/xalloc.h:149:0: note: this is the location of the
previous definition
 # define xalloc_oversized(n, s) \

I believe it is safe to undefine a macro that is not defined. It will
not generate another warning.

Thanks.