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/* ISC license. */
#ifndef NONPOSIX_H
#define NONPOSIX_H
/* Drop all pretense of standardness: some libc headers are *more*
broken when you define standard feature test macros than when
you don't (I'm looking at you, FreeBSD). */
#undef _POSIX_C_SOURCE
#undef _XOPEN_SOURCE
/* Solaris: the socket API is not POSIX unless you enable this */
#ifndef _XPG4_2
#define _XPG4_2
#endif
#ifndef _XPG6
#define _XPG6
#endif
/* Solaris: for settimeofday() and similar. Notice how you
have to define by hand a macro with double underscores. */
#ifndef __EXTENSIONS__
#define __EXTENSIONS__
#endif
/* GNU: most extensions are unavailable unless you enable this */
#ifndef _GNU_SOURCE
#define _GNU_SOURCE
#endif
/* BSD and Linux libcs that are not glibc: _BSD_SOURCE opens up a
lot of extensions. Of course, glibc insisted on changing to a
different macro, because coordination and consistency would make
developers' life too easy. */
#ifdef __GLIBC__
#ifndef _DEFAULT_SOURCE
#define _DEFAULT_SOURCE
#endif
#else
#ifndef _BSD_SOURCE
#define _BSD_SOURCE
#endif
#endif
/* NetBSD: of course they had to have their own macro too. */
#ifndef _NETBSD_SOURCE
#define _NETBSD_SOURCE
#endif
#ifndef _INCOMPLETE_XOPEN_C063
#define _INCOMPLETE_XOPEN_C063
#endif
/* MacOS: needs this for full SUSv3 conformance. Standards are hard. */
#ifndef _DARWIN_C_SOURCE
#define _DARWIN_C_SOURCE
#endif
/* old versions of BSD and some broken GNU toolchains:
system headers are not self-contained,
starting with sys/types.h normally always works. */
#include <sys/types.h>
#endif
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