C makefile

Makefile

dep=$(shell ls *.h)			# header files
all-sources=$(shell ls *.c)		# source files
obj=$(all-sources:.c=.o)		# objects
EXE=sample.exe				# executable
CFLAGS_$@=				# local C flags

# Check for verbosity flag
ifdef V
	ifeq ("$(origin V)", "command line")
		VERBOSE=$(V)
	endif
else
	VERBOSE=0
endif

# Set command prefixes based on verbosity
ifeq ($(VERBOSE), 1)
	SAY=@true
	Q=
else
	SAY=echo
	Q=@
endif

# if make -s (silent mode) suppress all output
ifneq ($(findstring s, $(MAKEFLAGS)),)
	Q=@
	SAY=@true
endif

# C compiling rules
all: $(EXE)
%.o: %.c $(dep)
	$(Q)$(CC) -c -o $@ $< $(CFLAGS) $(CFLAGS_$@)
	$(Q)$(SAY) "CC		$@"
$(EXE): $(obj)
	$(Q)$(CC) -o $@ $^ $(CFLAGS) $(CFLAGS_$@)
	$(Q)$(SAY) "CC		$@"
.PHONY: clean
clean:
	$(Q)$(RM) *.o $(EXE)
	$(Q)$(SAY) "Build directory clean"