Formatting

config.mk

@@ -2,27 +2,27 @@
 PROG = xmenu
 
 # paths
-PREFIX = /usr/local
-MANPREFIX = ${PREFIX}/share/man
+PREFIX    ?= /usr/local
+MANPREFIX ?= ${PREFIX}/share/man
 
-LOCALINC = /usr/local/include
-LOCALLIB = /usr/local/lib
+LOCALINC ?= /usr/local/include
+LOCALLIB ?= /usr/local/lib
 
-X11INC = /usr/X11R6/include
-X11LIB = /usr/X11R6/lib
+X11INC ?= /usr/X11R6/include
+X11LIB ?= /usr/X11R6/lib
 
-FREETYPEINC = /usr/include/freetype2
+FREETYPEINC ?= /usr/include/freetype2
 # OpenBSD (uncomment)
 #FREETYPEINC = ${X11INC}/freetype2
 
 # includes and libs
-INCS = -I${LOCALINC} -I${X11INC} -I${FREETYPEINC}
-LIBS = -L${LOCALLIB} -L${X11LIB} -lfontconfig -lXft -lX11 -lXinerama -lImlib2
+INCS := -I${LOCALINC} -I${X11INC} -I${FREETYPEINC}
+LIBS := -L${LOCALLIB} -L${X11LIB} -lfontconfig -lXft -lX11 -lXinerama -lImlib2
 
 # flags
-CPPFLAGS =
-CFLAGS = -Wall -Wextra ${INCS} ${CPPFLAGS}
-LDFLAGS = ${LIBS}
+CPPFLAGS :=
+CFLAGS   := -Wall -Wextra ${INCS} ${CPPFLAGS}
+LDFLAGS  := ${LIBS}
 
 # compiler and linker
 CC = cc