Re: [PATCH] Initial AIX portability fixes.

And Johannes Schindelin writes:
 - Why not enclose the #define in #ifndef/#endif, and do the real magic in 
 - the Makefile? Within the AIX clause:
 - 	ALL_CFLAGS += -D_XOPEN_SOURCE=500 -XOPEN_SOURCE_EXTENDED=1

Because other files do _not_ compile when given those options.
I'm going for minimal changes to the existing structure; the
#define for glibc2 has been there a long, long time.  Yes, it
probably can be done better, but these are 1.0rc versions...

Jason