###############################################################################
# common
###############################################################################
#ARCH: linux/arm/android/ios/win
ARCH		?= linux
CROSS_PREFIX	?=
OUTPUT		?= /usr/local
BUILD_DIR	:= $(shell pwd)/../build/
ARCH_INC	:= $(BUILD_DIR)/$(ARCH).inc
COLOR_INC	:= $(BUILD_DIR)/color.inc

ifeq ($(ARCH_INC), $(wildcard $(ARCH_INC)))
include $(ARCH_INC)
endif

CC	= $(CROSS_PREFIX)gcc
CXX	= $(CROSS_PREFIX)g++
LD	= $(CROSS_PREFIX)ld
AR	= $(CROSS_PREFIX)ar
STRIP   = $(CROSS_PREFIX)strip

ifeq ($(COLOR_INC), $(wildcard $(COLOR_INC)))
include $(COLOR_INC)
else
CC_V	= $(CC)
CXX_V	= $(CXX)
LD_V	= $(LD)
AR_V	= $(AR)
CP_V	= $(CP)
RM_V	= $(RM)
endif

###############################################################################
# target and object
###############################################################################
LIBNAME		= libgear
VERSION_SH	= $(shell pwd)/src/version.sh $(LIBNAME)
VER		= $(shell $(VERSION_SH); awk '/define\ $(LIBNAME)_version/{print $$3}' version.h)
TGT_LIB_H	= $(LIBNAME).h
TGT_LIB_A	= $(LIBNAME).a
TGT_LIB_SO	= $(LIBNAME).so
TGT_LIB_SO_VER	= $(TGT_LIB_SO).${VER}

OBJS_LIB := $(patsubst %.c,%.o,$(wildcard src/*.c))


###############################################################################
# cflags and ldflags
###############################################################################

ifeq ($(MODE), release)
CFLAGS	:= -O2 -Wall -Werror -fPIC
LTYPE   := release
else
CFLAGS	:= -g -Wall -Werror -fPIC
LTYPE   := debug
endif
ifeq ($(OUTPUT),/usr/local)
OUTLIBPATH := /usr/local
else
OUTLIBPATH := $(OUTPUT)/$(LTYPE)
endif
CFLAGS	+= $($(ARCH)_CFLAGS)
CFLAGS	+= -I./include
CFLAGS	+= -I$(OUTPUT)/include

CFLAGS	+= -DNO_CRYPTO

SHARED	:= -shared

LDFLAGS	:= $($(ARCH)_LDFLAGS)
LDFLAGS	+= -pthread

###############################################################################
# target
###############################################################################
.PHONY : all clean

TGT	:= $(TGT_LIB_A)
TGT	+= $(TGT_LIB_SO)

OBJS	:= $(OBJS_LIB)

all: $(TGT)

%.o:%.c
	$(CC_V) -c $(CFLAGS) $< -o $@

$(TGT_LIB_A): $(OBJS_LIB)
	$(AR_V) rcs $@ $^

$(TGT_LIB_SO): $(OBJS_LIB)
	$(CC_V) -o $@ $^ $(SHARED)
	@mv $(TGT_LIB_SO) $(TGT_LIB_SO_VER)
	@ln -sf $(TGT_LIB_SO_VER) $(TGT_LIB_SO)


clean:
	$(RM_V) -f $(OBJS)
	$(RM_V) -f $(TGT)
	$(RM_V) -f version.h
	$(RM_V) -f $(TGT_LIB_SO)*
	$(RM_V) -f $(TGT_LIB_SO_VER)

install:
	$(MAKEDIR_OUTPUT)
	@if [ "$(MODE)" = "release" ];then $(STRIP) $(TGT); fi
	@mkdir -p ${OUTPUT}/include/gear-lib
	@mkdir -p ${OUTPUT}/lib/gear-lib
	$(CP_V) -r include/$(TGT_LIB_H)  $(OUTPUT)/include/gear-lib
	$(CP_V) -r $(TGT_LIB_A)  $(OUTLIBPATH)/lib/gear-lib
	$(CP_V) -r $(TGT_LIB_SO) $(OUTLIBPATH)/lib/gear-lib
	$(CP_V) -r $(TGT_LIB_SO_VER) $(OUTLIBPATH)/lib/gear-lib

uninstall:
	cd $(OUTPUT)/include/gear-lib && rm -f $(TGT_LIB_H)
	$(RM_V) -f $(OUTLIBPATH)/lib/gear-lib/$(TGT_LIB_A)
	$(RM_V) -f $(OUTLIBPATH)/lib/gear-lib/$(TGT_LIB_SO)
	$(RM_V) -f $(OUTLIBPATH)/lib/gear-lib/$(TGT_LIB_SO_VER)