progs/trivial: Use glew where needed.

Builds on windows now.

1 files changed, 2 insertions, 1 deletions

diff --git a/progs/trivial/drawrange.c b/progs/trivial/drawrange.c
index 9c787cbfcde..e9ea99b5376 100644
--- a/progs/trivial/drawrange.c
+++ b/progs/trivial/drawrange.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>
 
 GLfloat verts[][4] = {
@@ -109,6 +109,7 @@ 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 );