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@@ -55,6 +55,7 @@
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These are defined by this file and are used by the
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header files to decide what to declare or define:
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+ __USE_ISOC11 Define ISO C11 things.
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__USE_ISOC99 Define ISO C99 things.
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__USE_ISOC95 Define ISO C90 AMD1 (C95) things.
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__USE_POSIX Define IEEE Std 1003.1 things.
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@@ -91,6 +92,7 @@
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/* Undefine everything, so we get a clean slate. */
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+#undef __USE_ISOC11
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#undef __USE_ISOC99
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#undef __USE_ISOC95
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#undef __USE_POSIX
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@@ -151,6 +153,8 @@
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#ifdef _GNU_SOURCE
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# undef _ISOC99_SOURCE
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# define _ISOC99_SOURCE 1
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+# undef _ISOC11_SOURCE
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+# define _ISOC11_SOURCE 1
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# undef _POSIX_SOURCE
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# define _POSIX_SOURCE 1
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# undef _POSIX_C_SOURCE
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@@ -223,11 +227,14 @@
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# define _SVID_SOURCE 1
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#endif
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-/* This is to enable the ISO C99 extension. Also recognize the old macro
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- which was used prior to the standard acceptance. This macro will
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- eventually go away and the features enabled by default once the ISO C99
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- standard is widely adopted. */
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-#if (defined _ISOC99_SOURCE || defined _ISOC9X_SOURCE \
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+/* This is to enable the ISO C11 extension. */
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+#if (defined _ISOC11_SOURCE \
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+ || (defined __STDC_VERSION__ && __STDC_VERSION__ >= 201112L))
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+# define __USE_ISOC11 1
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+#endif
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+
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+/* This is to enable the ISO C99 extension. */
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+#if (defined _ISOC99_SOURCE || defined _ISOC11_SOURCE \
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|| (defined __STDC_VERSION__ && __STDC_VERSION__ >= 199901L))
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# define __USE_ISOC99 1
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#endif
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Waldemar Brodkorb