--- a/Makefile	2015-04-17 13:43:08.122972280 +0200
+++ b/Makefile	2015-04-17 13:43:11.569975854 +0200
@@ -14,12 +14,12 @@
 PIXBUF_LIB := -rdynamic -L$(shell $(PIXBUF_CFG) --variable=prefix)/lib -lgdk_pixbuf_xlib-2.0 -lgdk_pixbuf-2.0 -lgobject-2.0
 endif
 
-CC = gcc #-g
-CFLAGS = -pipe -O2
-CPPFLAGS = -MMD -ansi -pedantic -Wall
+CC ?= gcc #-g
+CFLAGS ?= -pipe -O2
+CPPFLAGS ?= -MMD -ansi -pedantic -Wall
 INCDIRS = $(PIXBUF_INC)
 DEFINES = -DETCDIR='"$(ETCDIR)"' $(PIXBUF_DEF)
-LDFLAGS = -s
+LDFLAGS ?= -s
 LIBDIRS = $(PIXBUF_LIB)
 LDLIBS = -ldockapp -lXpm -lXext -lX11 -lm