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-rw-r--r--src/mesa/main/imports.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 42eba33d258..a439370bc4c 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -121,7 +121,8 @@ typedef union { GLfloat f; GLint i; } fi_type;
*/
/*@{*/
#if (_XOPEN_SOURCE < 600) && !defined(_ISOC99_SOURCE) \
- && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L))
+ && (!defined(__STDC_VERSION__) || (__STDC_VERSION__ < 199901L)) \
+ && (!defined(_MSC_VER) || (_MSC_VER < 1400))
#define acosf(f) ((float) acos(f))
#define asinf(f) ((float) asin(f))
#define atan2f(x,y) ((float) atan2(x,y))