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-rw-r--r--lib/Headers/float.h42
-rw-r--r--lib/Headers/stdarg.h2
2 files changed, 43 insertions, 1 deletions
diff --git a/lib/Headers/float.h b/lib/Headers/float.h
index 28fb882..6eede0b 100644
--- a/lib/Headers/float.h
+++ b/lib/Headers/float.h
@@ -24,6 +24,48 @@
#ifndef __FLOAT_H
#define __FLOAT_H
+/* If we're on MinGW, fall baack to the system's float.h, which might have
+ * additional definitions provided for Windows.
+ * For more details see http://msdn.microsoft.com/en-us/library/y0ybw9fy.aspx
+ */
+#if defined(__MINGW32__) && \
+ defined(__has_include_next) && __has_include_next(<float.h>)
+# include_next <float.h>
+
+/* Undefine anything that we'll be redefining below. */
+# undef FLT_EVAL_METHOD
+# undef FLT_ROUNDS
+# undef FLT_RADIX
+# undef FLT_MANT_DIG
+# undef DBL_MANT_DIG
+# undef LDBL_MANT_DIG
+# undef DECIMAL_DIG
+# undef FLT_DIG
+# undef DBL_DIG
+# undef LDBL_DIG
+# undef FLT_MIN_EXP
+# undef DBL_MIN_EXP
+# undef LDBL_MIN_EXP
+# undef FLT_MIN_10_EXP
+# undef DBL_MIN_10_EXP
+# undef LDBL_MIN_10_EXP
+# undef FLT_MAX_EXP
+# undef DBL_MAX_EXP
+# undef LDBL_MAX_EXP
+# undef FLT_MAX_10_EXP
+# undef DBL_MAX_10_EXP
+# undef LDBL_MAX_10_EXP
+# undef FLT_MAX
+# undef DBL_MAX
+# undef LDBL_MAX
+# undef FLT_EPSILON
+# undef DBL_EPSILON
+# undef LDBL_EPSILON
+# undef FLT_MIN
+# undef DBL_MIN
+# undef LDBL_MIN
+#endif
+
/* Characteristics of floating point types, C99 5.2.4.2.2 */
#define FLT_EVAL_METHOD __FLT_EVAL_METHOD__
diff --git a/lib/Headers/stdarg.h b/lib/Headers/stdarg.h
index c36ab12..2957bf0 100644
--- a/lib/Headers/stdarg.h
+++ b/lib/Headers/stdarg.h
@@ -39,7 +39,7 @@ typedef __builtin_va_list va_list;
*/
#define __va_copy(d,s) __builtin_va_copy(d,s)
-#if __STDC_VERSION__ >= 199900L || !defined(__STRICT_ANSI__)
+#if __STDC_VERSION__ >= 199900L || __cplusplus >= 201103L || !defined(__STRICT_ANSI__)
#define va_copy(dest, src) __builtin_va_copy(dest, src)
#endif
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