fwcutter: Add sparse support, Add quiet build, Add autodependencies

Signed-off-by: Michael Buesch <mb@bu3sch.de>

diff --git a/fwcutter/Makefile b/fwcutter/Makefile
index 2eb2e84cb3899fd11766232055b27b69ae5d667b..197ddef227ef868dab84cb620a16ad34f65d1d65 100644 (file)
--- a/fwcutter/Makefile
+++ b/fwcutter/Makefile
@@ -1,34 +1,63 @@
 VERSION = 012
 
-CC ?= cc
-PREFIX ?= /usr/local
-CFLAGS ?= -Os -fomit-frame-pointer
-CFLAGS += -std=c99 -Wall -pedantic -D_BSD_SOURCE
-LDFLAGS ?=
+# The toolchain definitions
+CC             = cc
+SPARSE         = sparse
+
+V              = @             # Verbose build:  make V=1
+C              = 0             # Sparsechecker build:  make C=1
+Q              = $(V:1=)
+QUIET_CC       = $(Q:@=@echo '     CC       '$@;)$(CC)
+QUIET_DEPEND   = $(Q:@=@echo '     DEPEND   '$@;)$(CC)
+ifeq ($(C),1)
+QUIET_SPARSE   = $(Q:@=@echo '     SPARSE   '$@;)$(SPARSE)
+else
+QUIET_SPARSE   = @/bin/true
+endif
 
+PREFIX ?= /usr/local
+CFLAGS         ?= -Os -fomit-frame-pointer
+CFLAGS         += -std=c99 -Wall -pedantic -D_BSD_SOURCE
+LDFLAGS                ?=
 
-OBJECTS = fwcutter.o md5.o
+SRCS = fwcutter.c md5.c
 BIN    = b43-fwcutter
 
 CFLAGS += -DFWCUTTER_VERSION_=$(VERSION)
 
-all: $(BIN)
+.SUFFIXES:
+.PHONY: all install clean distclean
+.DEFAULT_GOAL := all
+
+DEPS = $(sort $(patsubst %.c,dep/%.d,$(1)))
+OBJS = $(sort $(patsubst %.c,obj/%.o,$(1)))
 
-fwcutter.o: fwcutter.h fwcutter_list.h md5.h
+# Generate dependencies
+$(call DEPS,$(SRCS)): dep/%.d: %.c 
+       @mkdir -p $(dir $@)
+       $(QUIET_DEPEND) -o $@.tmp -MM -MG -MT "$@ $(patsubst dep/%.d,obj/%.o,$@)" $(CFLAGS) $< && mv -f $@.tmp $@
 
-md5.o: md5.h
+-include $(call DEPS,$(SRCS))
+
+# Generate object files
+$(call OBJS,$(SRCS)): obj/%.o:
+       @mkdir -p $(dir $@)
+       $(QUIET_SPARSE) $(SPARSEFLAGS) $<
+       $(QUIET_CC) -o $@ -c $(CFLAGS) $<
+
+all: $(BIN)
 
-$(BIN): $(OBJECTS)
-       $(CC) $(CFLAGS) -o $(BIN) $(OBJECTS) $(LDFLAGS)
+$(BIN): $(call OBJS,$(SRCS))
+       $(QUIET_CC) $(CFLAGS) -o $(BIN) $(call OBJS,$(SRCS)) $(LDFLAGS)
 
 install: all
-       -install -d -o 0 -g 0 -m 755 $(PREFIX)/bin/
-       -install -o 0 -g 0 -m 755 $(BIN) $(PREFIX)/bin/
-       -install -d -o 0 -g 0 -m 755 $(PREFIX)/man/man1/
-       -install -o 0 -g 0 -m 644 $(BIN).1 $(PREFIX)/man/man1/
+       install -d -o 0 -g 0 -m 755 $(PREFIX)/bin/
+       install -o 0 -g 0 -m 755 $(BIN) $(PREFIX)/bin/
+       install -d -o 0 -g 0 -m 755 $(PREFIX)/man/man1/
+       install -o 0 -g 0 -m 644 $(BIN).1 $(PREFIX)/man/man1/
 
 clean:
-       -rm -f *.o $(BIN)
+       -rm -Rf obj dep *.orig *.rej *~
 
 distclean: clean
-       -rm -f *.fw *.orig *.rej *~
+       -rm -f *.fw $(BIN)