Index: Makefile
===================================================================
--- Makefile	(revision 6262b5c7974b08ad57f56d797cf7106c80531276)
+++ Makefile	(revision e877e55993af7ec31a186b7407b09bed7f85689c)
@@ -16,5 +16,5 @@
 				-nostdinc -fno-strict-aliasing -fno-inline -fno-omit-frame-pointer \
 				-Wpedantic -Wcast-align -Wcast-qual -Wconversion -Wsign-conversion \
-				-Wshadow -Wstrict-prototypes -Wredundant-decls \
+				-Wshadow -Wstrict-prototypes -Wmissing-declarations -Wredundant-decls \
 				-I include