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authorRical Jasan <ricaljasan@pacific.net>2018-02-19 04:37:16 -0800
committerRical Jasan <ricaljasan@pacific.net>2018-02-21 02:38:42 -0800
commit862b45026fa67277a554eb329538a7d536311eca (patch)
tree70b0265c55a4af5b4c11563ce536f19014bc8fe5 /include
parent999a6dab3ee1c8e77bb348ba2389e7aeb5c062b2 (diff)
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manual: Update _DEFAULT_SOURCE. [BZ #22862]
The description of the interplay between feature test macros and compiler options in the description of _DEFAULT_SOURCE is a little confusing, and dated, so clarify the situation, and don't assume a specific value for _DEFAULT_SOURCE. Also, _DEFAULT_SOURCE is supposed to be defined if none of the C/POSIX feature test macros are defined, but the condition was lacking a test for _ISOC11_SOURCE, so that is also addressed. [BZ #22862] * include/features.h: Add _ISOC11_SOURCE to test for whether to define _DEFAULT_SOURCE. * manual/creature.texi (_DEFAULT_SOURCE): Improve documentation.
Diffstat (limited to 'include')
-rw-r--r--include/features.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/features.h b/include/features.h
index 137a90b..d22c32e 100644
--- a/include/features.h
+++ b/include/features.h
@@ -214,7 +214,7 @@
define _DEFAULT_SOURCE. */
#if (defined _DEFAULT_SOURCE \
|| (!defined __STRICT_ANSI__ \
- && !defined _ISOC99_SOURCE \
+ && !defined _ISOC99_SOURCE && !defined _ISOC11_SOURCE \
&& !defined _POSIX_SOURCE && !defined _POSIX_C_SOURCE \
&& !defined _XOPEN_SOURCE))
# undef _DEFAULT_SOURCE