_Makefile_deprecated_

# Define version and soname
REALSENSE_VERSION_MAJOR = 1
REALSENSE_VERSION_MINOR = 11
REALSENSE_VERSION_PATCH = 1
REALSENSE_LIBRARY_SONAME = librealsense.so.${REALSENSE_VERSION_MAJOR}
REALSENSE_LIBRARY_TARGET_NAME = librealsense.so.${REALSENSE_VERSION_MAJOR}.${REALSENSE_VERSION_MINOR}.${REALSENSE_VERSION_PATCH}

# Detect OS and CPU
uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not')
machine := $(shell sh -c "$(CC) -dumpmachine || echo unknown")

# Always install everything under $(DESTDIR)$(prefix)
# $DESTDIR is defined when the intall target is run with dh_auto_install
# otherwise, it is likely empty
prefix = /usr/local

# Allow to bypass ldconfig, such as during dh_auto_install.
# Bypassing can be done by setting LDCONFIG='echo ldconfig skipped'
LDCONFIG = ldconfig


# Specify BACKEND=V4L2 or BACKEND=LIBUVC to build a specific backend
BACKEND := V4L2

ifeq ($(uname_S),Darwin)
# OSX defaults to libuvc instead of V4L
BACKEND := LIBUVC
endif

LIBUSB_FLAGS := `pkg-config --cflags --libs libusb-1.0`

CFLAGS := -std=c11 -D_BSD_SOURCE -fPIC -pedantic -g -DRS_USE_$(BACKEND)_BACKEND $(LIBUSB_FLAGS)
CXXFLAGS := -std=c++11 -fPIC -pedantic -Ofast -Wall -Wextra
# Replace -Wno-unknown-pragmas with -fopenmp to multithread image.cpp
CXXFLAGS += -Wno-unknown-pragmas
CXXFLAGS += -Wno-strict-aliasing
CXXFLAGS += -Wno-unused-function

CXXFLAGS += -Wno-switch -Wno-multichar -DRS_USE_$(BACKEND)_BACKEND $(LIBUSB_FLAGS) 

# soname support requires a dedicated flag on OSX
SONAME_FLAG=-soname

# Add specific include paths for OSX
ifeq ($(uname_S),Darwin)
CFLAGS   += -I/usr/local/include
CXXFLAGS += -I/usr/local/include
SONAME_FLAG=-install_name
endif

ifeq (arm-linux-gnueabihf,$(machine))
CXXFLAGS += -mfpu=neon -mfloat-abi=hard -ftree-vectorize
else
ifeq (aarch64-linux-gnu,$(machine))
CXXFLAGS += -mstrict-align -ftree-vectorize
else
CXXFLAGS += -mssse3
endif
endif

# Compute list of all *.o files that participate in librealsense.so
OBJECTS = verify
OBJECTS += $(notdir $(basename $(wildcard src/*.cpp)))
OBJECTS += $(addprefix libuvc/, $(notdir $(basename $(wildcard src/libuvc/*.c))))
OBJECTS := $(addprefix obj/, $(addsuffix .o, $(OBJECTS)))

# Sets of flags used by the example programs
REALSENSE_FLAGS := -Iinclude -Llib -lrealsense -lm

ifeq ($(uname_S),Darwin)
# OSX uses OpenGL as a framework
GLFW3_FLAGS := `pkg-config --cflags --libs glfw3` -lglfw3 -framework OpenGL
else
# otherwise pkg-config finds OpenGL
GLFW3_FLAGS := `pkg-config --cflags --libs glfw3 glu gl`
endif

# Compute a list of all header files
INCLUDES := $(wildcard src/*.hpp)
INCLUDES += $(wildcard src/*.h)
INCLUDES += $(wildcard include/librealsense/*.hpp)
INCLUDES += $(wildcard include/librealsense/*.h)

# Compute a list of all example program binaries
EXAMPLES := $(wildcard examples/*.c)
EXAMPLES += $(wildcard examples/*.cpp)
EXAMPLES := $(addprefix bin/, $(notdir $(basename $(EXAMPLES))))

# Aliases for convenience
all: examples $(EXAMPLES) all-tests

install: lib/librealsense.so
	install -m755 -d $(DESTDIR)$(prefix)/include/librealsense
	install -m644 -D -t $(DESTDIR)$(prefix)/include/librealsense include/librealsense/*
	cp -d lib/librealsense.so* $(DESTDIR)$(prefix)/lib
	$(LDCONFIG)

uninstall:
	rm -rf $(DESTDIR)$(prefix)/include/librealsense
	rm -f $(DESTDIR)$(prefix)/lib/librealsense.so*
	$(LDCONFIG)

clean:
	rm -rf obj
	rm -rf lib
	rm -rf bin

library: lib/librealsense.so

obj obj/libuvc lib bin:
	mkdir -p obj/libuvc
	mkdir -p lib
	mkdir -p bin
	mkdir -p bin/tests

# Rules for building the sample programs
bin/c-%: examples/c-%.c lib/librealsense.so | bin
	$(CC) $< $(REALSENSE_FLAGS) $(GLFW3_FLAGS) $(LDFLAGS) -o $@

bin/cpp-%: examples/cpp-%.cpp lib/librealsense.so | bin
	$(CXX) $< -std=c++11 $(REALSENSE_FLAGS) $(GLFW3_FLAGS) $(LDFLAGS) -o $@

# OSX substitute for ldconfig
localize_lib_path=ldconfig -v -n .;
ifeq ($(uname_S),Darwin)
localize_lib_path=export DYLD_LIBRARY_PATH=.:${DYLD_LIBRARY_PATH}
endif

# Rules for building the library itself
lib/librealsense.so: lib/${REALSENSE_LIBRARY_TARGET_NAME}
	cd lib; \
	$(localize_lib_path) \
	ln -s ${REALSENSE_LIBRARY_SONAME} librealsense.so

# DEB_LDFLAGS are set for debian builds to:
# -fPIC -soname,librealsense.so.1 -Wl,-Bsymbolic-functions -Wl,-z,relro
lib/${REALSENSE_LIBRARY_TARGET_NAME}: $(OBJECTS) | lib
	$(CXX) -std=c++11 $(DEB_LDFLAGS)  -shared $(OBJECTS) $(LIBUSB_FLAGS) -Wl,$(SONAME_FLAG),${REALSENSE_LIBRARY_SONAME} -o $@

lib/librealsense.a: $(OBJECTS) | lib
	ar rvs $@ `find obj/ -name "*.o"`

# Rules for compiling librealsense source
obj/%.o: src/%.cpp $(INCLUDES) | obj
	$(CXX) $< $(CXXFLAGS) -c -o $@

# Rules for compiling libuvc source
obj/libuvc/%.o: src/libuvc/%.c | obj
	$(CC) $< $(CFLAGS) -c -o $@

# Special rule to verify that rs.h can be included by a C89 compiler
obj/verify.o: src/verify.c | obj
	$(CC) $< -std=c89 -Iinclude -c -o $@

# rules for tests

.PHONY: all-tests all clean

all-tests: F200-live-test LR200-live-test R200-live-test SR300-live-test ZR300-live-test offline-test

%-test: unit-tests/* lib/librealsense.so
	$(CXX) unit-tests/*.cpp -std=c++11 -o bin/tests/$@ -D$(if $(findstring live,$@),LIVE_TEST,OFFLINE_TEST) -D$(firstword $(subst -, ,$@))_TEST -DMAKEFILE $(REALSENSE_FLAGS) $(LDFLAGS)