diff --git a/src/dp_doom/linuxdoom-1.10/m_swap.c b/src/dp_doom/linuxdoom-1.10/m_swap.c
index 1929bd8..08e102b 100644
--- a/src/dp_doom/linuxdoom-1.10/m_swap.c
+++ b/src/dp_doom/linuxdoom-1.10/m_swap.c
@@ -46,7 +46,9 @@ unsigned long SwapLONG( unsigned long x)
 	| ((x<<24) & 0xff000000);
 }
 
-
+#else
+// To silence warning: ISO C forbids an empty translation unit [-Wpedantic]
+__attribute__((used))static void foo() {}
 #endif