1 files changed, 2 insertions, 1 deletions
diff --git a/progs/tests/drawbuffers.c b/progs/tests/drawbuffers.c
index 5e89569380..d75a870c26 100644
--- a/progs/tests/drawbuffers.c
+++ b/progs/tests/drawbuffers.c
@@ -7,11 +7,11 @@
  */
 
 
-#define GL_GLEXT_PROTOTYPES
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include <GL/glew.h>
 #include <GL/glut.h>
 #include "extfuncs.h"
 
@@ -294,6 +294,7 @@ main(int argc, char *argv[])
    glutInitWindowSize(Width, Height);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
    Win = glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc(Reshape);
    glutKeyboardFunc(Key);
    glutDisplayFunc(Display);