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-rw-r--r--progs/trivial/line-userclip.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/progs/trivial/line-userclip.c b/progs/trivial/line-userclip.c
index 77d8228188..e30be5580b 100644
--- a/progs/trivial/line-userclip.c
+++ b/progs/trivial/line-userclip.c
@@ -41,6 +41,7 @@ static void Init(void)
fprintf(stderr, "GL_RENDERER = %s\n", (char *) glGetString(GL_RENDERER));
fprintf(stderr, "GL_VERSION = %s\n", (char *) glGetString(GL_VERSION));
fprintf(stderr, "GL_VENDOR = %s\n", (char *) glGetString(GL_VENDOR));
+ fflush(stderr);
glClearColor(0.0, 0.0, 1.0, 0.0);
glClipPlane(GL_CLIP_PLANE0, plane);