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-rw-r--r--src/mesa/main/imports.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 0bf649972c3..0a72da0f475 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -128,7 +128,7 @@ extern void _ext_mesa_free_pixelbuffer( void *pb );
#define MAX_GLUINT 0xffffffff
#ifndef M_PI
-#define M_PI (3.1415926)
+#define M_PI (3.1415926536)
#endif
/* Degrees to radians conversion: */