progs/egl: Fix building on cygwin.

[mesa.git] / progs / egl / opengles2 / tri.c

diff --git a/progs/egl/opengles2/tri.c b/progs/egl/opengles2/tri.c
index 8981d8a7e217e9a5e8507b503fba8da39dc934d6..812dbf031e4b55b8613f8cf5f5b594b663c0ed2c 100644 (file)
--- a/progs/egl/opengles2/tri.c
+++ b/progs/egl/opengles2/tri.c
@@ -29,6 +29,10 @@
 #include <EGL/egl.h>
 
 
+#ifndef M_PI
+#define M_PI 3.14159265
+#endif
+
 #define FLOAT_TO_FIXED(X)   ((X) * 65535.0)