progs/trivial: add fflushes for cygwin

115 files changed, 116 insertions, 0 deletions

diff --git a/progs/trivial/clear-fbo-tex.c b/progs/trivial/clear-fbo-tex.c
index eccfde5ae6..a206676e48 100644
--- a/progs/trivial/clear-fbo-tex.c
+++ b/progs/trivial/clear-fbo-tex.c
@@ -27,6 +27,7 @@ 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);
 
 
    if (!glutExtensionSupported("GL_EXT_framebuffer_object")) {
diff --git a/progs/trivial/clear-fbo.c b/progs/trivial/clear-fbo.c
index 64b25430c6..0aeb45489f 100644
--- a/progs/trivial/clear-fbo.c
+++ b/progs/trivial/clear-fbo.c
@@ -23,6 +23,7 @@ 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);
 
 
    if (!glutExtensionSupported("GL_EXT_framebuffer_object")) {
diff --git a/progs/trivial/clear-random.c b/progs/trivial/clear-random.c
index f3a67dbe8a..e3da23a8f5 100644
--- a/progs/trivial/clear-random.c
+++ b/progs/trivial/clear-random.c
@@ -39,6 +39,7 @@ 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);
 
 }
 
diff --git a/progs/trivial/clear-repeat.c b/progs/trivial/clear-repeat.c
index 9c618d492f..f966adb080 100644
--- a/progs/trivial/clear-repeat.c
+++ b/progs/trivial/clear-repeat.c
@@ -38,6 +38,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/clear-scissor.c b/progs/trivial/clear-scissor.c
index 5e2025bed7..0173532748 100644
--- a/progs/trivial/clear-scissor.c
+++ b/progs/trivial/clear-scissor.c
@@ -16,6 +16,7 @@ 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);
 }
 
 static void Reshape(int width, int height)
diff --git a/progs/trivial/clear-undefined.c b/progs/trivial/clear-undefined.c
index ce066bf8e6..5ec33bf3d7 100644
--- a/progs/trivial/clear-undefined.c
+++ b/progs/trivial/clear-undefined.c
@@ -17,6 +17,7 @@ static void Init(void)
    fprintf(stderr, "GL_VERSION    = %s\n", (char *) glGetString(GL_VERSION));
    fprintf(stderr, "GL_VENDOR     = %s\n", (char *) glGetString(GL_VENDOR));
    fprintf(stderr, "Top right corner should be red\n");
+   fflush(stderr);
 }
 
 static void Reshape(int width, int height)
diff --git a/progs/trivial/clear.c b/progs/trivial/clear.c
index 37cfd54fbe..03857b4b89 100644
--- a/progs/trivial/clear.c
+++ b/progs/trivial/clear.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/createwin.c b/progs/trivial/createwin.c
index 44d5b1b2c5..f2cc6f1cff 100644
--- a/progs/trivial/createwin.c
+++ b/progs/trivial/createwin.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/dlist-dangling.c b/progs/trivial/dlist-dangling.c
index 64054ec96c..de10628009 100644
--- a/progs/trivial/dlist-dangling.c
+++ b/progs/trivial/dlist-dangling.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/dlist-edgeflag-dangling.c b/progs/trivial/dlist-edgeflag-dangling.c
index 1b66244cab..3d3aaeb694 100644
--- a/progs/trivial/dlist-edgeflag-dangling.c
+++ b/progs/trivial/dlist-edgeflag-dangling.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/dlist-edgeflag.c b/progs/trivial/dlist-edgeflag.c
index 350100681e..8002129ed1 100644
--- a/progs/trivial/dlist-edgeflag.c
+++ b/progs/trivial/dlist-edgeflag.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/line-clip.c b/progs/trivial/line-clip.c
index bcee32e25f..5276baffd5 100644
--- a/progs/trivial/line-clip.c
+++ b/progs/trivial/line-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/line-cull.c b/progs/trivial/line-cull.c
index 9821873130..1e1b77a942 100644
--- a/progs/trivial/line-cull.c
+++ b/progs/trivial/line-cull.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/line-smooth.c b/progs/trivial/line-smooth.c
index f030de9b9f..9c4b9a0115 100644
--- a/progs/trivial/line-smooth.c
+++ b/progs/trivial/line-smooth.c
@@ -44,10 +44,12 @@ 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);
    glGetFloatv(GL_LINE_WIDTH_RANGE, aarange);
    glGetFloatv(GL_ALIASED_LINE_WIDTH_RANGE, range);
    printf("Non-AA line width range: %f .. %f\n", range[0], range[1]);
    printf("AA line width range: %f .. %f\n", aarange[0], aarange[1]);
+   fflush(stdout);
 }
 
 
diff --git a/progs/trivial/line-stipple-wide.c b/progs/trivial/line-stipple-wide.c
index 28d96c797b..1804ffad3f 100644
--- a/progs/trivial/line-stipple-wide.c
+++ b/progs/trivial/line-stipple-wide.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/line-userclip-clip.c b/progs/trivial/line-userclip-clip.c
index 1b9f059729..8e030b47ce 100644
--- a/progs/trivial/line-userclip-clip.c
+++ b/progs/trivial/line-userclip-clip.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);
diff --git a/progs/trivial/line-userclip-nop-clip.c b/progs/trivial/line-userclip-nop-clip.c
index 9f144a6e9a..6fcd4bcfe7 100644
--- a/progs/trivial/line-userclip-nop-clip.c
+++ b/progs/trivial/line-userclip-nop-clip.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);
diff --git a/progs/trivial/line-userclip-nop.c b/progs/trivial/line-userclip-nop.c
index 7588faeb98..e59fd133a5 100644
--- a/progs/trivial/line-userclip-nop.c
+++ b/progs/trivial/line-userclip-nop.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);
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);
diff --git a/progs/trivial/line-wide.c b/progs/trivial/line-wide.c
index f20505378c..b74021dea7 100644
--- a/progs/trivial/line-wide.c
+++ b/progs/trivial/line-wide.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/line.c b/progs/trivial/line.c
index 7ccbce3750..e1d73280bf 100644
--- a/progs/trivial/line.c
+++ b/progs/trivial/line.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/lineloop-clip.c b/progs/trivial/lineloop-clip.c
index fbeca985b9..45fa47491f 100644
--- a/progs/trivial/lineloop-clip.c
+++ b/progs/trivial/lineloop-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/lineloop.c b/progs/trivial/lineloop.c
index 5863df654b..c290dbd8cb 100644
--- a/progs/trivial/lineloop.c
+++ b/progs/trivial/lineloop.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/linestrip-clip.c b/progs/trivial/linestrip-clip.c
index dae27c31d4..f252822921 100644
--- a/progs/trivial/linestrip-clip.c
+++ b/progs/trivial/linestrip-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/linestrip-flat-stipple.c b/progs/trivial/linestrip-flat-stipple.c
index ee79f15019..5caa724423 100644
--- a/progs/trivial/linestrip-flat-stipple.c
+++ b/progs/trivial/linestrip-flat-stipple.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/linestrip-stipple-wide.c b/progs/trivial/linestrip-stipple-wide.c
index c6307d5994..701c82c266 100644
--- a/progs/trivial/linestrip-stipple-wide.c
+++ b/progs/trivial/linestrip-stipple-wide.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/linestrip-stipple.c b/progs/trivial/linestrip-stipple.c
index 2b40b5f1b8..df2eef96b5 100644
--- a/progs/trivial/linestrip-stipple.c
+++ b/progs/trivial/linestrip-stipple.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/linestrip.c b/progs/trivial/linestrip.c
index 865a752796..0219b1ab70 100644
--- a/progs/trivial/linestrip.c
+++ b/progs/trivial/linestrip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/long-fixed-func.c b/progs/trivial/long-fixed-func.c
index f2a29a9d37..4b6c412f9e 100644
--- a/progs/trivial/long-fixed-func.c
+++ b/progs/trivial/long-fixed-func.c
@@ -53,6 +53,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 
diff --git a/progs/trivial/point-clip.c b/progs/trivial/point-clip.c
index 6aaee0d1a5..4c89ba598d 100644
--- a/progs/trivial/point-clip.c
+++ b/progs/trivial/point-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/point-param.c b/progs/trivial/point-param.c
index 1edeec3468..6f43720a89 100644
--- a/progs/trivial/point-param.c
+++ b/progs/trivial/point-param.c
@@ -38,6 +38,7 @@ 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);
 }
diff --git a/progs/trivial/point-sprite.c b/progs/trivial/point-sprite.c
index 2f8226ee27..5d29a6a3cf 100644
--- a/progs/trivial/point-sprite.c
+++ b/progs/trivial/point-sprite.c
@@ -39,6 +39,7 @@ 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);
 
 
 #define SIZE 16
diff --git a/progs/trivial/point-wide-smooth.c b/progs/trivial/point-wide-smooth.c
index 63f83badf8..f6e9b8df5f 100644
--- a/progs/trivial/point-wide-smooth.c
+++ b/progs/trivial/point-wide-smooth.c
@@ -40,6 +40,7 @@ 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);
 }
diff --git a/progs/trivial/point-wide.c b/progs/trivial/point-wide.c
index 725edae49e..8abd64c6a9 100644
--- a/progs/trivial/point-wide.c
+++ b/progs/trivial/point-wide.c
@@ -40,6 +40,7 @@ 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);
 }
diff --git a/progs/trivial/point.c b/progs/trivial/point.c
index 3c472c1b91..49959dcc48 100644
--- a/progs/trivial/point.c
+++ b/progs/trivial/point.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/poly-flat-clip.c b/progs/trivial/poly-flat-clip.c
index d58a3a358f..5490068b08 100644
--- a/progs/trivial/poly-flat-clip.c
+++ b/progs/trivial/poly-flat-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/poly-flat-unfilled-clip.c b/progs/trivial/poly-flat-unfilled-clip.c
index 74249eb499..26b90ef964 100644
--- a/progs/trivial/poly-flat-unfilled-clip.c
+++ b/progs/trivial/poly-flat-unfilled-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/poly-flat.c b/progs/trivial/poly-flat.c
index 82098bc1bb..a4e3cdb633 100644
--- a/progs/trivial/poly-flat.c
+++ b/progs/trivial/poly-flat.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/poly-unfilled.c b/progs/trivial/poly-unfilled.c
index 5cc8523f81..2ad443dc15 100644
--- a/progs/trivial/poly-unfilled.c
+++ b/progs/trivial/poly-unfilled.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/poly.c b/progs/trivial/poly.c
index 8944f148d0..e5b788ea5b 100644
--- a/progs/trivial/poly.c
+++ b/progs/trivial/poly.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-clip-all-vertices.c b/progs/trivial/quad-clip-all-vertices.c
index 6559adf4af..60c87fc9ce 100644
--- a/progs/trivial/quad-clip-all-vertices.c
+++ b/progs/trivial/quad-clip-all-vertices.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-clip-nearplane.c b/progs/trivial/quad-clip-nearplane.c
index 0e4f4c947c..9380e4f9ae 100644
--- a/progs/trivial/quad-clip-nearplane.c
+++ b/progs/trivial/quad-clip-nearplane.c
@@ -40,6 +40,7 @@ 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);
 
    fprintf(stderr, "Press z/Z to translate quad\n");
 
diff --git a/progs/trivial/quad-clip.c b/progs/trivial/quad-clip.c
index fd3522a89a..063de6106a 100644
--- a/progs/trivial/quad-clip.c
+++ b/progs/trivial/quad-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-degenerate.c b/progs/trivial/quad-degenerate.c
index 29fb2774de..fdc142bcd6 100644
--- a/progs/trivial/quad-degenerate.c
+++ b/progs/trivial/quad-degenerate.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-flat.c b/progs/trivial/quad-flat.c
index 570eb6bc71..e3147b3b3f 100644
--- a/progs/trivial/quad-flat.c
+++ b/progs/trivial/quad-flat.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-offset-factor.c b/progs/trivial/quad-offset-factor.c
index 2c4946a13a..dfe99bbae6 100644
--- a/progs/trivial/quad-offset-factor.c
+++ b/progs/trivial/quad-offset-factor.c
@@ -34,6 +34,7 @@ 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(1.0, 1.0, 1.0, 0.0);
 }
diff --git a/progs/trivial/quad-offset-unfilled.c b/progs/trivial/quad-offset-unfilled.c
index 40762825bd..06590021fe 100644
--- a/progs/trivial/quad-offset-unfilled.c
+++ b/progs/trivial/quad-offset-unfilled.c
@@ -39,6 +39,7 @@ 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(1.0, 1.0, 1.0, 0.0);
 }
diff --git a/progs/trivial/quad-offset-units.c b/progs/trivial/quad-offset-units.c
index b4b138b4b4..922529d977 100644
--- a/progs/trivial/quad-offset-units.c
+++ b/progs/trivial/quad-offset-units.c
@@ -34,6 +34,7 @@ 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(1.0, 1.0, 1.0, 0.0);
 }
diff --git a/progs/trivial/quad-tex-2d.c b/progs/trivial/quad-tex-2d.c
index ed6f4a0733..8a886ef578 100644
--- a/progs/trivial/quad-tex-2d.c
+++ b/progs/trivial/quad-tex-2d.c
@@ -38,6 +38,7 @@ 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);
 
diff --git a/progs/trivial/quad-tex-3d.c b/progs/trivial/quad-tex-3d.c
index 84acb35fd8..d05131d3b8 100644
--- a/progs/trivial/quad-tex-3d.c
+++ b/progs/trivial/quad-tex-3d.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/quad-tex-alpha.c b/progs/trivial/quad-tex-alpha.c
index be24255a3e..eebaf9170e 100644
--- a/progs/trivial/quad-tex-alpha.c
+++ b/progs/trivial/quad-tex-alpha.c
@@ -39,6 +39,7 @@ 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);
 
diff --git a/progs/trivial/quad-tex-pbo.c b/progs/trivial/quad-tex-pbo.c
index dcb4ae0e7f..ad41a9a22e 100644
--- a/progs/trivial/quad-tex-pbo.c
+++ b/progs/trivial/quad-tex-pbo.c
@@ -42,6 +42,7 @@ 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);
 
diff --git a/progs/trivial/quad-tex-sub.c b/progs/trivial/quad-tex-sub.c
index aabbb9edce..5620dbc6f8 100644
--- a/progs/trivial/quad-tex-sub.c
+++ b/progs/trivial/quad-tex-sub.c
@@ -89,6 +89,7 @@ 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);
 
diff --git a/progs/trivial/quad-unfilled-clip.c b/progs/trivial/quad-unfilled-clip.c
index e25a34bda8..761878bd4b 100644
--- a/progs/trivial/quad-unfilled-clip.c
+++ b/progs/trivial/quad-unfilled-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-unfilled-stipple.c b/progs/trivial/quad-unfilled-stipple.c
index d33e5918bc..cd7d276928 100644
--- a/progs/trivial/quad-unfilled-stipple.c
+++ b/progs/trivial/quad-unfilled-stipple.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad-unfilled.c b/progs/trivial/quad-unfilled.c
index b60af3e7f5..d64f17fdf9 100644
--- a/progs/trivial/quad-unfilled.c
+++ b/progs/trivial/quad-unfilled.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quad.c b/progs/trivial/quad.c
index c4773ec7da..d360e309d3 100644
--- a/progs/trivial/quad.c
+++ b/progs/trivial/quad.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quads.c b/progs/trivial/quads.c
index 5bc622144e..fe11fef207 100644
--- a/progs/trivial/quads.c
+++ b/progs/trivial/quads.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quadstrip-clip.c b/progs/trivial/quadstrip-clip.c
index 82a6d4e076..4cea81a45d 100644
--- a/progs/trivial/quadstrip-clip.c
+++ b/progs/trivial/quadstrip-clip.c
@@ -34,6 +34,7 @@ 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);
 }
diff --git a/progs/trivial/quadstrip-cont.c b/progs/trivial/quadstrip-cont.c
index 62208dfae7..329523531a 100644
--- a/progs/trivial/quadstrip-cont.c
+++ b/progs/trivial/quadstrip-cont.c
@@ -34,6 +34,7 @@ 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);
 }
diff --git a/progs/trivial/quadstrip-flat.c b/progs/trivial/quadstrip-flat.c
index 9011ee0873..228c6c255e 100644
--- a/progs/trivial/quadstrip-flat.c
+++ b/progs/trivial/quadstrip-flat.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/quadstrip.c b/progs/trivial/quadstrip.c
index 6923afc04b..d49a9a5302 100644
--- a/progs/trivial/quadstrip.c
+++ b/progs/trivial/quadstrip.c
@@ -34,6 +34,7 @@ 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);
 }
diff --git a/progs/trivial/readpixels.c b/progs/trivial/readpixels.c
index 88aac2684a..5671618446 100644
--- a/progs/trivial/readpixels.c
+++ b/progs/trivial/readpixels.c
@@ -17,6 +17,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
 
diff --git a/progs/trivial/tri-alpha-tex.c b/progs/trivial/tri-alpha-tex.c
index 382d7b2102..780ebe6be5 100644
--- a/progs/trivial/tri-alpha-tex.c
+++ b/progs/trivial/tri-alpha-tex.c
@@ -39,6 +39,7 @@ 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);
 
diff --git a/progs/trivial/tri-alpha.c b/progs/trivial/tri-alpha.c
index 1a653713bb..aec1cbb377 100644
--- a/progs/trivial/tri-alpha.c
+++ b/progs/trivial/tri-alpha.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-blend-color.c b/progs/trivial/tri-blend-color.c
index db831e3d6e..92f019259e 100644
--- a/progs/trivial/tri-blend-color.c
+++ b/progs/trivial/tri-blend-color.c
@@ -40,6 +40,7 @@ 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);
 
 }
 
diff --git a/progs/trivial/tri-clear.c b/progs/trivial/tri-clear.c
index a3908e38e9..f49186bd8a 100644
--- a/progs/trivial/tri-clear.c
+++ b/progs/trivial/tri-clear.c
@@ -40,6 +40,7 @@ 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);
 }
diff --git a/progs/trivial/tri-clip.c b/progs/trivial/tri-clip.c
index 0d31086c85..e1deca1bdc 100644
--- a/progs/trivial/tri-clip.c
+++ b/progs/trivial/tri-clip.c
@@ -37,6 +37,7 @@ 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);
 }
 
diff --git a/progs/trivial/tri-cull-both.c b/progs/trivial/tri-cull-both.c
index 73c5583cfd..864be710c2 100644
--- a/progs/trivial/tri-cull-both.c
+++ b/progs/trivial/tri-cull-both.c
@@ -39,6 +39,7 @@ 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);
    glCullFace(GL_FRONT_AND_BACK);
diff --git a/progs/trivial/tri-cull.c b/progs/trivial/tri-cull.c
index c6bcf444e4..c71ad9a031 100644
--- a/progs/trivial/tri-cull.c
+++ b/progs/trivial/tri-cull.c
@@ -60,6 +60,7 @@ 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);
    cull();
 }
diff --git a/progs/trivial/tri-dlist.c b/progs/trivial/tri-dlist.c
index 1c0e320f61..c410be221a 100644
--- a/progs/trivial/tri-dlist.c
+++ b/progs/trivial/tri-dlist.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/tri-edgeflag.c b/progs/trivial/tri-edgeflag.c
index e1278dd649..4c8736ad8c 100644
--- a/progs/trivial/tri-edgeflag.c
+++ b/progs/trivial/tri-edgeflag.c
@@ -35,6 +35,7 @@ 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);
 }
 
 static void Reshape(int width, int height)
diff --git a/progs/trivial/tri-fbo.c b/progs/trivial/tri-fbo.c
index 7a38f2124c..1ed177ffdf 100644
--- a/progs/trivial/tri-fbo.c
+++ b/progs/trivial/tri-fbo.c
@@ -23,6 +23,7 @@ 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);
 
 
    if (!glutExtensionSupported("GL_EXT_framebuffer_object")) {
diff --git a/progs/trivial/tri-flat-clip.c b/progs/trivial/tri-flat-clip.c
index 3235100385..2aab5ba00a 100644
--- a/progs/trivial/tri-flat-clip.c
+++ b/progs/trivial/tri-flat-clip.c
@@ -39,6 +39,7 @@ 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(0.5, 0.5, 0.5, 0.0);
 }
diff --git a/progs/trivial/tri-flat.c b/progs/trivial/tri-flat.c
index a7fdaa1f46..ea703ec6f3 100644
--- a/progs/trivial/tri-flat.c
+++ b/progs/trivial/tri-flat.c
@@ -39,6 +39,7 @@ 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(0.5, 0.5, 0.5, 0.0);
 }
diff --git a/progs/trivial/tri-fog.c b/progs/trivial/tri-fog.c
index 0099a90ad6..0cea3d3258 100644
--- a/progs/trivial/tri-fog.c
+++ b/progs/trivial/tri-fog.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/tri-fp-const-imm.c b/progs/trivial/tri-fp-const-imm.c
index 2b1499903c..d2df442abf 100644
--- a/progs/trivial/tri-fp-const-imm.c
+++ b/progs/trivial/tri-fp-const-imm.c
@@ -51,6 +51,7 @@ 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);
 
    /* Setup the fragment program */
    glGenProgramsARB(1, &prognum);
diff --git a/progs/trivial/tri-fp.c b/progs/trivial/tri-fp.c
index b30f9b73e0..4d1508120e 100644
--- a/progs/trivial/tri-fp.c
+++ b/progs/trivial/tri-fp.c
@@ -49,6 +49,7 @@ 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);
 
    /* Setup the fragment program */
    glGenProgramsARB(1, &prognum);
diff --git a/progs/trivial/tri-lit.c b/progs/trivial/tri-lit.c
index 91fac1a598..15a7ad24c5 100644
--- a/progs/trivial/tri-lit.c
+++ b/progs/trivial/tri-lit.c
@@ -39,6 +39,7 @@ 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);
 
   glEnable(GL_LIGHTING);
   glEnable(GL_LIGHT0);
diff --git a/progs/trivial/tri-logicop-none.c b/progs/trivial/tri-logicop-none.c
index aba3614bf6..53c2614ac3 100644
--- a/progs/trivial/tri-logicop-none.c
+++ b/progs/trivial/tri-logicop-none.c
@@ -40,6 +40,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/tri-logicop-xor.c b/progs/trivial/tri-logicop-xor.c
index e2c94f9bee..f018a851ac 100644
--- a/progs/trivial/tri-logicop-xor.c
+++ b/progs/trivial/tri-logicop-xor.c
@@ -40,6 +40,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/tri-mask-tri.c b/progs/trivial/tri-mask-tri.c
index 449125a4db..d62620905d 100644
--- a/progs/trivial/tri-mask-tri.c
+++ b/progs/trivial/tri-mask-tri.c
@@ -39,6 +39,7 @@ 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);
 }
 
diff --git a/progs/trivial/tri-multitex-vbo.c b/progs/trivial/tri-multitex-vbo.c
index 76e117a333..e319447ac1 100644
--- a/progs/trivial/tri-multitex-vbo.c
+++ b/progs/trivial/tri-multitex-vbo.c
@@ -77,6 +77,7 @@ 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);
 
diff --git a/progs/trivial/tri-orig.c b/progs/trivial/tri-orig.c
index 6861ff6e49..e7cfee3a36 100644
--- a/progs/trivial/tri-orig.c
+++ b/progs/trivial/tri-orig.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-query.c b/progs/trivial/tri-query.c
index 9b319ba2a7..85e39df2df 100644
--- a/progs/trivial/tri-query.c
+++ b/progs/trivial/tri-query.c
@@ -42,6 +42,7 @@ 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);
 
diff --git a/progs/trivial/tri-repeat.c b/progs/trivial/tri-repeat.c
index a271fab54c..91e355c71f 100644
--- a/progs/trivial/tri-repeat.c
+++ b/progs/trivial/tri-repeat.c
@@ -38,6 +38,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/tri-scissor-tri.c b/progs/trivial/tri-scissor-tri.c
index 2b5536ecd6..608ebf29cf 100644
--- a/progs/trivial/tri-scissor-tri.c
+++ b/progs/trivial/tri-scissor-tri.c
@@ -40,6 +40,7 @@ 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);
 }
diff --git a/progs/trivial/tri-square.c b/progs/trivial/tri-square.c
index 9102888abd..0b82a1dd8e 100644
--- a/progs/trivial/tri-square.c
+++ b/progs/trivial/tri-square.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-stipple.c b/progs/trivial/tri-stipple.c
index 33e6dd16a7..aa94fa224b 100644
--- a/progs/trivial/tri-stipple.c
+++ b/progs/trivial/tri-stipple.c
@@ -51,6 +51,7 @@ 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);
 
     glEnable (GL_POLYGON_STIPPLE);
     glPolygonStipple (fly);
diff --git a/progs/trivial/tri-tex-3d.c b/progs/trivial/tri-tex-3d.c
index 4f276af653..3ccbe12510 100644
--- a/progs/trivial/tri-tex-3d.c
+++ b/progs/trivial/tri-tex-3d.c
@@ -40,6 +40,7 @@ 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);
 
diff --git a/progs/trivial/tri-tex.c b/progs/trivial/tri-tex.c
index 1dbbe6aa58..56afb4748d 100644
--- a/progs/trivial/tri-tex.c
+++ b/progs/trivial/tri-tex.c
@@ -36,6 +36,7 @@ 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);
 
diff --git a/progs/trivial/tri-tri.c b/progs/trivial/tri-tri.c
index 8b0c2dafef..f996bd01a1 100644
--- a/progs/trivial/tri-tri.c
+++ b/progs/trivial/tri-tri.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-clip.c b/progs/trivial/tri-unfilled-clip.c
index 438899dc1a..2fd894a49a 100644
--- a/progs/trivial/tri-unfilled-clip.c
+++ b/progs/trivial/tri-unfilled-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-edgeflag.c b/progs/trivial/tri-unfilled-edgeflag.c
index 78c5ae8e9c..11c21d1bf6 100644
--- a/progs/trivial/tri-unfilled-edgeflag.c
+++ b/progs/trivial/tri-unfilled-edgeflag.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-fog.c b/progs/trivial/tri-unfilled-fog.c
index 113b8d051d..c6ecc705b3 100644
--- a/progs/trivial/tri-unfilled-fog.c
+++ b/progs/trivial/tri-unfilled-fog.c
@@ -40,6 +40,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-point.c b/progs/trivial/tri-unfilled-point.c
index b050280155..750a254669 100644
--- a/progs/trivial/tri-unfilled-point.c
+++ b/progs/trivial/tri-unfilled-point.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-smooth.c b/progs/trivial/tri-unfilled-smooth.c
index 9306af849a..eddae176e5 100644
--- a/progs/trivial/tri-unfilled-smooth.c
+++ b/progs/trivial/tri-unfilled-smooth.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-tri-lit.c b/progs/trivial/tri-unfilled-tri-lit.c
index 775c3530b7..1d42b40b71 100644
--- a/progs/trivial/tri-unfilled-tri-lit.c
+++ b/progs/trivial/tri-unfilled-tri-lit.c
@@ -39,6 +39,7 @@ 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);
 
   glEnable(GL_LIGHTING);
   glEnable(GL_LIGHT0);
diff --git a/progs/trivial/tri-unfilled-tri.c b/progs/trivial/tri-unfilled-tri.c
index ce789255fd..695cc89095 100644
--- a/progs/trivial/tri-unfilled-tri.c
+++ b/progs/trivial/tri-unfilled-tri.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-unfilled-userclip-stip.c b/progs/trivial/tri-unfilled-userclip-stip.c
index 6835b53c0f..ddc0dffd4f 100644
--- a/progs/trivial/tri-unfilled-userclip-stip.c
+++ b/progs/trivial/tri-unfilled-userclip-stip.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);
diff --git a/progs/trivial/tri-unfilled-userclip.c b/progs/trivial/tri-unfilled-userclip.c
index aab5abc230..0dec0bfc9b 100644
--- a/progs/trivial/tri-unfilled-userclip.c
+++ b/progs/trivial/tri-unfilled-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);
diff --git a/progs/trivial/tri-unfilled.c b/progs/trivial/tri-unfilled.c
index 4f50d083c2..b98cb9a842 100644
--- a/progs/trivial/tri-unfilled.c
+++ b/progs/trivial/tri-unfilled.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tri-userclip.c b/progs/trivial/tri-userclip.c
index 43d19cebab..8f37e0fae2 100644
--- a/progs/trivial/tri-userclip.c
+++ b/progs/trivial/tri-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);
diff --git a/progs/trivial/tri-viewport.c b/progs/trivial/tri-viewport.c
index 3205b9ee9c..8e5f155c7d 100644
--- a/progs/trivial/tri-viewport.c
+++ b/progs/trivial/tri-viewport.c
@@ -35,6 +35,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/tri-z-9.c b/progs/trivial/tri-z-9.c
index e7d4184bdb..099e89f6f4 100644
--- a/progs/trivial/tri-z-9.c
+++ b/progs/trivial/tri-z-9.c
@@ -39,6 +39,7 @@ 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);
 
 }
 
diff --git a/progs/trivial/tri-z-eq.c b/progs/trivial/tri-z-eq.c
index 4ec55ac080..b81c992f7d 100644
--- a/progs/trivial/tri-z-eq.c
+++ b/progs/trivial/tri-z-eq.c
@@ -39,6 +39,7 @@ 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);
 
 }
 
diff --git a/progs/trivial/tri.c b/progs/trivial/tri.c
index d99d5872a9..d44cb6a9fe 100644
--- a/progs/trivial/tri.c
+++ b/progs/trivial/tri.c
@@ -40,6 +40,7 @@ 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(0.3, 0.1, 0.3, 0.0);
 }
diff --git a/progs/trivial/trifan-flat-clip.c b/progs/trivial/trifan-flat-clip.c
index ec7a50a75e..199f91a637 100644
--- a/progs/trivial/trifan-flat-clip.c
+++ b/progs/trivial/trifan-flat-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/trifan-flat-unfilled-clip.c b/progs/trivial/trifan-flat-unfilled-clip.c
index 4887b5a30c..ea3e155387 100644
--- a/progs/trivial/trifan-flat-unfilled-clip.c
+++ b/progs/trivial/trifan-flat-unfilled-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/trifan-flat.c b/progs/trivial/trifan-flat.c
index cf75d4cf08..d69b4887e3 100644
--- a/progs/trivial/trifan-flat.c
+++ b/progs/trivial/trifan-flat.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/trifan-unfilled.c b/progs/trivial/trifan-unfilled.c
index 491fe5b3df..91447e4e44 100644
--- a/progs/trivial/trifan-unfilled.c
+++ b/progs/trivial/trifan-unfilled.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/trifan.c b/progs/trivial/trifan.c
index ee9854dc94..84eb4172de 100644
--- a/progs/trivial/trifan.c
+++ b/progs/trivial/trifan.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tristrip-clip.c b/progs/trivial/tristrip-clip.c
index eeab676ea9..343e293804 100644
--- a/progs/trivial/tristrip-clip.c
+++ b/progs/trivial/tristrip-clip.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tristrip-flat.c b/progs/trivial/tristrip-flat.c
index 49bb432b9d..02da97efce 100644
--- a/progs/trivial/tristrip-flat.c
+++ b/progs/trivial/tristrip-flat.c
@@ -39,6 +39,7 @@ 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);
 }
diff --git a/progs/trivial/tristrip.c b/progs/trivial/tristrip.c
index 023e6475c0..77bf2fad28 100644
--- a/progs/trivial/tristrip.c
+++ b/progs/trivial/tristrip.c
@@ -39,6 +39,7 @@ 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);
 }