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-rw-r--r--include/features.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/features.h b/include/features.h
index c0edd106ee..c447a60299 100644
--- a/include/features.h
+++ b/include/features.h
@@ -26,7 +26,8 @@
_ISOC9X_SOURCE Extensions to ISO C 89 from ISO C 9x.
_POSIX_SOURCE IEEE Std 1003.1.
_POSIX_C_SOURCE If ==1, like _POSIX_SOURCE; if >=2 add IEEE Std 1003.2;
- if >=199309L, add IEEE Std 1003.1b-1993
+ if >=199309L, add IEEE Std 1003.1b-1993;
+ if >=199506L, add IEEE Std 1003.1c-1995
_XOPEN_SOURCE Includes POSIX and XPG things. Set to 500 if
Single Unix conformance is wanted.
_XOPEN_SOURCE_EXTENDED XPG things and X/Open Unix extensions.