Add Linux GNU Makefile

GNUmakefile

@@ -0,0 +1,21 @@
+PREFIX ?= /usr/local
+PKG_CONFIG ?= pkg-config
+LIBS = x11 xft xrandr libbsd-overlay
+override CFLAGS += $(shell $(PKG_CONFIG) --cflags $(LIBS))
+override LDFLAGS += $(shell $(PKG_CONFIG) --libs $(LIBS))
+
+PROG = cwm
+OBJS = calmwm.o client.o conf.o group.o kbfunc.o menu.o parse.o screen.o search.o util.o \
+	xevents.o xmalloc.o xutil.o
+
+.PHONY: all
+all: $(PROG)
+
+$(PROG): $(OBJS)
+	$(CC) $(CFLAGS) -o $@ $^ $(LDFLAGS)
+
+.PHONY: clean
+clean:
+	rm -f $(OBJS)
+
+.PRECIOUS: parse.c