diff --git a/auto/core/GLX_MESA_swap_control b/auto/core/GLX_MESA_swap_control
new file mode 100644
index 0000000..4416519
--- /dev/null
+++ b/auto/core/GLX_MESA_swap_control
@@ -0,0 +1,5 @@
+GLX_MESA_swap_control
+http://cgit.freedesktop.org/mesa/mesa/plain/docs/MESA_swap_control.spec
+GLX_MESA_swap_control
+	int glXGetSwapIntervalMESA (void)
+	int glXSwapIntervalMESA (unsigned int interval)