1 files changed, 3 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 109a35f..83418b7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,6 @@
-CFLAGS ?= -g -O2 -W -Wall -std=c99 -D_POSIX_C_SOURCE=2
+NEEDED_CFLAGS := -std=c99 -D_POSIX_C_SOURCE=2
+CFLAGS ?= -g -O2 -W -Wall
+override CFLAGS += $(NEEDED_CFLAGS)
 DESTDIR ?= /usr/local
 pw:
 clean: ; rm -f pw