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| author | dufault <dufault@FreeBSD.org> | 1998-03-08 17:25:38 +0000 |
|---|---|---|
| committer | dufault <dufault@FreeBSD.org> | 1998-03-08 17:25:38 +0000 |
| commit | d3dd91fcbc3fdd38db7fa5e2a844a103e8090a00 (patch) | |
| tree | 01a8747d7362e70e0f5e23b70dbcda75cf6092e8 /lib/libc/gen/sysconf.c | |
| parent | 84b7fbfa292269f69d459cbb4ecf1c921bb167c3 (diff) | |
| download | FreeBSD-src-d3dd91fcbc3fdd38db7fa5e2a844a103e8090a00.zip FreeBSD-src-d3dd91fcbc3fdd38db7fa5e2a844a103e8090a00.tar.gz | |
Reviewed by: bde
Changes to support building with _POSIX_SOURCE set to 199309L:
1. Add sys/_posix.h to handle those preprocessor defs that POSIX
says have effects when defined before including any header files;
2. Change POSIX4_VISIBLE back to _POSIX4_VISIBLE
3. Add _POSIX4_VISIBLE_HISTORICALLY for pre-existing BSD features now
defined in POSIX. These show up when:
_POSIX_SOURCE and _POSIX_C_SOURCE are not set or
_POSIX_C_SOURCE is set >= 199309L
and vanish when:
_POSIX_SOURCE is set or _POSIX_C_SOURCE is < 199309L.
4. Explain these in man 9 posix4;
5. Include _posix.h and conditionalize on new feature test.
Diffstat (limited to 'lib/libc/gen/sysconf.c')
| -rw-r--r-- | lib/libc/gen/sysconf.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/lib/libc/gen/sysconf.c b/lib/libc/gen/sysconf.c index df67581..2d9c2ed 100644 --- a/lib/libc/gen/sysconf.c +++ b/lib/libc/gen/sysconf.c @@ -176,7 +176,7 @@ sysconf(name) mib[1] = USER_POSIX2_UPE; goto yesno; -#ifdef POSIX4 +#if _POSIX_VERSION >= 199309L /* POSIX.4 */ case _SC_ASYNCHRONOUS_IO: @@ -279,7 +279,7 @@ sysconf(name) mib[0] = CTL_POSIX4; mib[1] = CTL_POSIX4_TIMER_MAX; goto yesno; -#endif /* POSIX4 */ +#endif /* _POSIX_VERSION >= 199309L */ yesno: if (sysctl(mib, 2, &value, &len, NULL, 0) == -1) return (-1); |
