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-rw-r--r--libstdc++-v3/config.h.in15
1 files changed, 15 insertions, 0 deletions
diff --git a/libstdc++-v3/config.h.in b/libstdc++-v3/config.h.in
index bf0ee3406da..837e2c7d082 100644
--- a/libstdc++-v3/config.h.in
+++ b/libstdc++-v3/config.h.in
@@ -826,6 +826,21 @@
/* Define to 1 if mutex_timedlock is available. */
#undef _GTHREAD_USE_MUTEX_TIMEDLOCK
+/* Define if all C++ overloads are available in <math.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_MATH_H_PROTO1
+#endif
+
+/* Define if only double std::abs(double) is available in <math.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_MATH_H_PROTO2
+#endif
+
+/* Define if all C++ overloads are available in <stdlib.h>. */
+#if __cplusplus >= 199711L
+#undef __CORRECT_ISO_CPP_STDLIB_H_PROTO
+#endif
+
#if defined (HAVE__ACOSF) && ! defined (HAVE_ACOSF)
# define HAVE_ACOSF 1
# define acosf _acosf