#############################################################################
#
#	Makefile for building the char-driver sample module
#
#############################################################################

TARGETS = winsize resize

ifeq ($(DEBUG),y)
	CFLAGS += -O -g		# -O is need to expand inlines
else
	CFLAGS += -O2
endif

PWD     := $(shell pwd)

GUMSTIX_BUILDROOT	= $(PWD)/../gumstix-buildroot
BUILD_ARM		= $(wildcard $(GUMSTIX_BUILDROOT)/build_arm*)
KERNELDIR 		?= $(wildcard $(BUILD_ARM)/linux-*)
CROSS_COMPILE		= $(BUILD_ARM)/staging_dir/bin/arm-linux-uclibc-

DEP_OUTPUT_OPTION = -MMD -MF $(@:.o=.d)

TARGET_ARCH=-Os -march=armv5te -mtune=xscale -Wa,-mcpu=xscale
CC = $(CROSS_COMPILE)gcc

#
# If you need additional serch paths for include files, then use the -I flag
# and add them to the CPPFLAGS variable
#

# CPPFLAGS += -I somedir

#
# If you need addional search paths for library files, then use the -L flag
# and add them to LDFLAGS.
#

# LDFLAGS += -L somedir

#
# If you need additional libraries, then use -lxxx to search for libxxx.a
#

# LDFLAGS += -lxxx

.PHONY: all

all: $(TARGETS)

#
# You can change the $(TARGET).c if that's not your main file and you can
# add additional .o files to the end of the line
#

SRCS	= $(addsuffix .c,$(TARGETS))
OBJS	= $(SRCS:.c=.o)
DEPS 	= $(OBJS:.o=.d)

$(TARGETS) : % : %.o

# Compile and produce the .d file at the same time

%.o : %.c %.d
	$(COMPILE.c) $(DEP_OUTPUT_OPTION) $(OUTPUT_OPTION) $<

# Making the .d's be phony and providing a dummy rule to make them, combined
# with the %.o : %.c %.d causes make to work properly when the .d file is
# removed, but the .o file isn't. make will now regenerate the .d by 
# recompiling the .o
	
.PHONY: %.d
%.d: ;

clean:
	rm -rf $(OBJS) core $(TARGETS)

ifneq ($(DEP_FILES),)
ifeq ($(strip $(filter clean%, $(MAKECMDGOALS))),)
-include $(DEP_FILES)
endif
endif