--- Makefile.orig	2018-07-16 12:17:05 UTC
+++ Makefile
@@ -8,9 +8,9 @@ WARNFLAGS = -Wall -Wextra -std=gnu99 -pe
 DEBUGFLAGS = -g
 CFLAGS += $(OPTFLAGS) $(WARNFLAGS) $(DEBUGFLAGS)
 OS := $(shell uname)
-ifneq ($(OS), Darwin)
-	LDFLAGS += -Wl,-z,relro
-endif
+.if ${OS} != Darwin
+LDFLAGS += -Wl,-z,relro
+.endif