progs/demos: silence warnings
diff --git a/progs/demos/textures.c b/progs/demos/textures.c
index b7bf135..d94154a 100644
--- a/progs/demos/textures.c
+++ b/progs/demos/textures.c
@@ -57,7 +57,7 @@
 {
    Xrot = glutGet(GLUT_ELAPSED_TIME) * 0.02;
    Yrot = glutGet(GLUT_ELAPSED_TIME) * 0.04;
-   //Zrot += 2.0;
+   /*Zrot += 2.0;*/
    glutPostRedisplay();
 }