progs/trivial: add fflushes for cygwin
diff --git a/progs/trivial/line-smooth.c b/progs/trivial/line-smooth.c
index f030de9..9c4b9a0 100644
--- a/progs/trivial/line-smooth.c
+++ b/progs/trivial/line-smooth.c
@@ -44,10 +44,12 @@
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);
}