File 0004-leap-gnu18-removal.patch of Package cockpit

--- cockpit/src/Makefile.am.orig
+++ cockpit/src/Makefile.am
@@ -44,7 +44,7 @@
 	$(NULL)
 
 AM_CFLAGS = \
-	-std=gnu18 \
+	-std=gnu11 \
 	-pthread \
 	-Wall \
 	-Werror=strict-prototypes \