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Diffstat (limited to 'manual/creature.texi')
| -rw-r--r-- | manual/creature.texi | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/manual/creature.texi b/manual/creature.texi index 37dee54b56..babbb0ab05 100644 --- a/manual/creature.texi +++ b/manual/creature.texi @@ -124,8 +124,10 @@ it must have been specified to compile as thread safe. @end defvr We recommend you use @code{_GNU_SOURCE} in new programs. If you don't -specify the @samp{-ansi} option to GCC and don't define any of these macros -explicitly, the effect is the same as defining @code{_GNU_SOURCE}. +specify the @samp{-ansi} option to GCC and don't define any of these +macros explicitly, the effect is the same as defining +@code{_POSIX_C_SOURCE} to 2 and @code{_POSIX_SOURCE}, +@code{_SVID_SOURCE}, and @code{_BSD_SOURCE} to 1. When you define a feature test macro to request a larger class of features, it is harmless to define in addition a feature test macro for a subset of |