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-rw-r--r--include/features.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/features.h b/include/features.h
index 6e3a8763b3..bbf03f0692 100644
--- a/include/features.h
+++ b/include/features.h
@@ -196,6 +196,8 @@
# define _LARGEFILE_SOURCE 1
# if (_XOPEN_SOURCE - 0) >= 600
# define __USE_XOPEN2K 1
+# undef __USE_ISOC99
+# define __USE_ISOC99 1
# endif
# else
# ifdef _XOPEN_SOURCE_EXTENDED
@@ -240,6 +242,9 @@
#define __STDC_IEC_559__ 1
#define __STDC_IEC_559_COMPLEX__ 1
+/* wchar_t uses Unicode 3.0. */
+#define __STDC_ISO_10646__ 200001L
+
/* This macro indicates that the installed library is the GNU C Library.
For historic reasons the value now is 6 and this will stay from now
on. The use of this variable is deprecated. Use __GLIBC__ and