Don't overwrite CFLAGS if already set

blegat · blegat · commit ab1a5313a54a · 2021-04-21T11:07:59.000+02:00
diff --git a/makefile b/makefile
@@ -35,7 +35,7 @@ default: lrs
 INCLUDEDIR = /usr/local/include
 LIBDIR     = /usr/local/lib
 
-CFLAGS     = -O3 -Wall 
+CFLAGS     ?= -O3 -Wall
 #CFLAGS     = -g -Wall 
 
 #use this if you want only output file contain data between begin/end lines
