From b98188e381e7d3338fe9f6f76954bd803e46b8e9 Mon Sep 17 00:00:00 2001
From: "Daniel M. Capella" <polyzen@users.noreply.github.com>
Date: Fri, 16 Nov 2018 04:09:51 +0000
Subject: [PATCH] Respect CPPFLAGS environment variable

---
 config.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/config.mk b/config.mk
index d8068c2..65d095a 100644
--- a/config.mk
+++ b/config.mk
@@ -16,7 +16,7 @@ INCS+= `pkg-config --cflags libnotify`
 LIBS+= `pkg-config --libs libnotify`
 
 # flags
-CPPFLAGS = -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=199309
+CPPFLAGS += -DVERSION=\"${VERSION}\" -D_POSIX_C_SOURCE=199309
 CFLAGS += -g -std=c99 -pedantic -Wall -Os ${INCS} ${DEFS} ${CPPFLAGS}
 LDFLAGS += -g ${LIBS}