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-rw-r--r--src/mesa/main/imports.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 2ae1116f41..a4afaf17d1 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -224,6 +224,11 @@ typedef union { GLfloat f; GLint i; } fi_type;
#define M_PI (3.1415926536)
#endif
+#ifndef M_E
+#define M_E (2.7182818284590452354)
+#endif
+
+
/* XXX this is a bit of a hack needed for compilation within XFree86 */
#ifndef FLT_MIN
#define FLT_MIN (1.0e-37)