[FFmpeg-devel] [PATCH] fix implicit function declarations without _XOPEN_SOURCE

[Aurelien Jacobs]

Hi,

When compiling without _XOPEN_SOURCE defined globally, there are a few
"implicit function declaration" warnings appearing. This might cause
serious trouble on 64 bits arch (segfault, etc...).
Attached patch adds a few define to some files, to ensure the prototypes
of the following functions are imported:
 - usleep()
 - mkstemp()
 - gethostname()
 - inet_aton()

With this patch applied, I think that global _XOPEN_SOURCE can definitely
be dropped, without any kind of trouble.

Aurel
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