--- Makefile.orig	2021-09-28 10:04:14 UTC
+++ Makefile
@@ -21,7 +21,7 @@ VERSION=0.13.04
 # Codename "wakeboarding interstellar wombat"
 #
 
-CFLAGS += -Wall -Wextra -DVERSION='"$(VERSION)"' -O2 -std=gnu99
+CFLAGS += -Wall -Wextra -DVERSION='"$(VERSION)"' -O2 -std=gnu11 -pipe
 
 #
 # Pedantic flags