use GL_GLEXT_PROTOTYPES
diff --git a/progs/samples/blendeq.c b/progs/samples/blendeq.c
index 12107f5..315257b 100644
--- a/progs/samples/blendeq.c
+++ b/progs/samples/blendeq.c
@@ -14,10 +14,9 @@
 #ifdef _WIN32
 #include <windows.h>
 #endif
-#define GL_GLEXT_LEGACY
+#define GL_GLEXT_PROTOTYPES
 #include <GL/glut.h>
 
-
 GLenum doubleBuffer;
 static int dithering = 0;
 static int doPrint = 1;