On 07/25/2011 10:36 AM, Tom Lane wrote:
> Andrew Dunstan<andrew@dunslane.net> writes:
>> [python headers set _POSIX_C_SOURCE and _XOPEN_SOURCE]
> BTW ... so far as I can find, there is no attempt anywhere in the
> Postgres sources to set either of these macros. And my understanding of
> their purpose is that *system* headers should not be setting them at
> all, rather the application sets them to indicate which POSIX feature
> level it would like. So perhaps the real question here is where the
> heck are your conflicting values coming from ...
>
>
_POSIX_C_SOURCE at least is defined in features.h, which is included by
huge numbers of system headers, many of which are included by c.h.
cheers
andrew
