1 files changed, 2 insertions, 1 deletions
diff --git a/progs/tests/readrate.c b/progs/tests/readrate.c
index 42ae62d48a..6bdda04907 100644
--- a/progs/tests/readrate.c
+++ b/progs/tests/readrate.c
@@ -7,11 +7,11 @@
  * gcc readrate.c -L/usr/X11R6/lib -lglut -lGLU -lGL -lX11 -o readrate
  */
 
-#define GL_GLEXT_PROTOTYPES
 #include <assert.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 /* Hack, to test drawing instead of reading */
@@ -275,6 +275,7 @@ main(int argc, char *argv[])
    glutInitWindowSize(MAX_WIDTH, MAX_HEIGHT);
    glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH | GLUT_STENCIL);
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc(Reshape);
    glutKeyboardFunc(Key);
    glutSpecialFunc(SpecialKey);