Ramsay Jones <[email protected]> writes:
> ...
> Although I have not done an actual diff of the various cdef.h files, they
> do appear to be more or less the same. In other words, I no longer think
> that the change results from a 'change in priority of _XOPEN_SOURCE'. The
> issue is simply that in the old <string.h> header these functions were
> declared unconditionally; in the new headers the are contained within
> preprocessor conditionals using the __GNU_VISIBLE and __BSD_VISIBLE macros
> which are not set when _XOPEN_SOURCE is set (despite _GNU_SOURCE and
> _BSD_SOURCE being set).
So I can take your version [*1*], drop this bit from the log:
This seems to be caused by a change to the system headers which
results in the _XOPEN_SOURCE macro now having prioity over the
_GNU_SOURCE and _BSD_SOURCE macros (they are simply ignored).
This in turn leads to the declarations of the above functions
to be suppressed.
and replace it with something like:
<string.h> on Cygwin used to always declare the above functions,
but a recent version of it no longer make them visible when
_XOPEN_SOURCE is set (even if _GNU_SOURCE and _BSD_SOURCE is
set).
and keep the rest, I think.
Thanks for digging this thoroughly.
[Reference]
*1* http://article.gmane.org/gmane.comp.version-control.git/260091
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