CONFIGURE: Fix OpenGL test broken in previous commit.

1 files changed, 1 insertions, 0 deletions

diff --git a/configure b/configure
index 90b8f01b8c..70648631e7 100755
--- a/configure
+++ b/configure
@@ -3655,6 +3655,7 @@ if test "$_opengl" = auto ; then
 			# Test the current header for OpenGL
 			cat > $TMPC << EOF
 #include <$i>
+#include <stdio.h>
 int main(void) { printf("ANTIVIRUS FALSE POSITIVE WORKAROUND"); return GL_VERSION_1_1; }
 EOF
 			cc_check $DEFINES $OPENGL_CFLAGS $OPENGL_LIBS && _opengl=yes && break