[Zlib-devel] [PATCH] Check on _LARGEFILE64_SOURCE and friends are too strict

[John Bowler]

I said something which is wrong:

From: John Bowler [mailto:jbowler at frontiernet.net] 
>a defined but empty pp-token is evaluated as "1"

I should have said a definition on the command line, e.g. -D_LARGEFILE64_SOURCE, defines the macro as "1", but if it's explicitly defined as empty:

#define _LARGEFILE64_SOURCE

Something like:

#if _LARGEFILE64_SOURCE

Will generate an error.  We know that doesn't happen, however, because the current contents of zlib.h wouldn't work if _LARGEFILE64_SOURCE was #defined as empty either.

John Bowler <jbowler at acm.org>