1 files changed, 2 insertions, 1 deletions
diff --git a/progs/trivial/vp-clip.c b/progs/trivial/vp-clip.c
index 206ba0b8cb8..267b927b93f 100644
--- a/progs/trivial/vp-clip.c
+++ b/progs/trivial/vp-clip.c
@@ -5,7 +5,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <math.h>
-#define GL_GLEXT_PROTOTYPES
+#include <GL/glew.h>
 #include <GL/glut.h>
 
 static void Init( void )
@@ -93,6 +93,7 @@ int main( int argc, char *argv[] )
    glutInitWindowSize( 250, 250 );
    glutInitDisplayMode( GLUT_RGB | GLUT_SINGLE | GLUT_DEPTH );
    glutCreateWindow(argv[0]);
+   glewInit();
    glutReshapeFunc( Reshape );
    glutKeyboardFunc( Key );
    glutDisplayFunc( Display );