From a7649fbd9adb79ff81acb0341dfbb3822b8e12aa Mon Sep 17 00:00:00 2001
From: Chris Down <chris@chrisdown.name>
Date: Tue, 9 Apr 2024 02:26:54 +0100
Subject: [PATCH] makefile: Make sure CPPFLAGS/LDLIBS can only be added to

---
 Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Makefile b/Makefile
index e74ec5b..10c1c63 100644
--- a/Makefile
+++ b/Makefile
@@ -2,8 +2,8 @@ CFLAGS := -std=gnu11 -O2 -Wall -Wextra -Wshadow -Wpointer-arith \
 	  -Wcast-align -Wmissing-prototypes -Wstrict-overflow -Wformat=2 \
 	  -Wwrite-strings -Warray-bounds -Wstrict-prototypes \
 	  -Werror $(CFLAGS)
-CPPFLAGS := -I/usr/X11R6/include -L/usr/X11R6/lib
-LDLIBS := -lX11 -lXfixes
+CPPFLAGS += -I/usr/X11R6/include -L/usr/X11R6/lib
+LDLIBS += -lX11 -lXfixes
 PREFIX ?= /usr/local
 bindir := $(PREFIX)/bin
 debug_cflags := -D_FORTIFY_SOURCE=2 -fsanitize=leak -fsanitize=address \