Merge pull request #4470 from d3zd3z/fix-posix-define

Check if feature macro is defined before define it
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Ronald Cron 2021-05-12 15:47:12 +02:00 committed by GitHub
commit 7dbcc3c794
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@ -0,0 +1,6 @@
Bugfix
* In library/net_sockets.c, _POSIX_C_SOURCE and _XOPEN_SOURCE are
defined to specific values. If the code is used in a context
where these are already defined, this can result in a compilation
error. Instead, assume that if they are defined, the values will
be adequate to build Mbed TLS.

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@ -20,8 +20,12 @@
/* Enable definition of getaddrinfo() even when compiling with -std=c99. Must
* be set before config.h, which pulls in glibc's features.h indirectly.
* Harmless on other platforms. */
#ifndef _POSIX_C_SOURCE
#define _POSIX_C_SOURCE 200112L
#endif
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 600 /* sockaddr_storage */
#endif
#include "common.h"