CONFIG_EXE_STATIC?=n
ifeq ($(CONFIG_USE_CCACHE),y)
#CCACHE_EXE =$(shell [ -x "/usr/bin/ccache" ] && echo "ccache")
CCACHE_EXE = $(ROOT_DIR)/tools/ccache
endif

#Enhance debugging for version build server now (2014/12/26)
#Dear Customers, Please do NOT merge it!
CROSS_PATH_GCC492 = /pub/tools/package/toolchain/mips-2014.11_4.9.2_01

VENDOR_NAME = s2
ifneq "$(wildcard $(CROSS_PATH_GCC492) )" ""
CROSS_PATH = $(CROSS_PATH_GCC492)
else
ifeq ($(CONFIG_GCC540),y)
CROSS_PATH = /pub/tools/package/toolchain/mips-2016.08.1/usr
VENDOR_NAME = t1
else
ifeq ($(CONFIG_SUPPORT_NEW_AIRPLAY),y)
CROSS_PATH = /pub/tools/package/toolchain/mips-2014.05-extra
else
CROSS_PATH = /pub/tools/package/toolchain/mips-2014.05
endif
endif
endif
CROSS_PREFIX = mipsel-$(VENDOR_NAME)-linux-uclibc-
ifeq ($(CONFIG_STATIC_UCLIBC),y)
#UCLIBCDIR = $(CROSS_PATH)/mipsel-$(VENDOR_NAME)-linux-uclibc/sysroot
UCLIBCDIR = $(ROOT_DIR)/aps/_install
else
UCLIBCDIR = $(CROSS_PATH)/mipsel-$(VENDOR_NAME)-linux-uclibc/sysroot
endif

CROSS = $(CCACHE_EXE) $(CROSS_PATH)/bin/$(CROSS_PREFIX)
PURECROSS = $(CROSS_PATH)/bin/$(CROSS_PREFIX)
OBJCOPY = $(CROSS_PATH)/bin/$(CROSS_PREFIX)objcopy

WRNFLAGS := -Wall -Wundef -Wempty-body -Wold-style-declaration -Wclobbered -Wignored-qualifiers -Wsign-compare
WRNFLAGS += -Wextra -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unused-but-set-parameter

#CFLAGS += -mips32r2 -pie -mplt -fPIC -mno-abicalls
CFLAGS += -mips32r2 -mplt $(WARNING_CFLAGS)
CFLAGS += -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I$(UCLIBCDIR)/usr/include
ifeq ($(CONFIG_GCC540),y)
CFLAGS += -I$(CROSS_PATH)/include -fgnu89-inline
endif
ifeq ($(CONFIG_GCOV_APPLICATION),y)	
CFLAGS += -fprofile-arcs -ftest-coverage
LDFLAGS += -fprofile-arcs -ftest-coverage
else
WRNFLAGS += -Werror 
endif
ifeq ($(CONFIG_BR2_OPTIMIZE_0),y)
CFLAGS += -O0
endif
ifeq ($(CONFIG_BR2_OPTIMIZE_1),y)
CFLAGS += -O1
endif
ifeq ($(CONFIG_BR2_OPTIMIZE_2),y)
CFLAGS += -O2
endif
ifeq ($(CONFIG_BR2_OPTIMIZE_3),y)
CFLAGS += -O3
endif
ifeq ($(CONFIG_BR2_OPTIMIZE_S),y)
CFLAGS += -Os
endif
ifeq ($(CONFIG_BR2_DEBUG_1),y)
CFLAGS += -g1
endif
ifeq ($(CONFIG_BR2_DEBUG_2),y)
CFLAGS += -g2
endif
ifeq ($(CONFIG_BR2_DEBUG_3),y)
CFLAGS += -g3
endif

ifeq ($(CONFIG_CALL_TRACE),y)
CFLAGS += -finstrument-functions
endif

#reduce code size
CFLAGS += -ffunction-sections -fdata-sections
LDFLAGS += -Wl,--gc-sections

ifeq ($(CONFIG_GCC540),y)
ifneq ($(CONFIG_CORE_DUMP),y)
CFLAGS += -flto -fuse-linker-plugin -ffat-lto-objects
LDFLAGS += -flto -fuse-linker-plugin -ffat-lto-objects
endif
endif

#place uninitialized global variables in the data section, rather than generating them as common blocks
CFLAGS += -fno-common

ifeq ($(CONFIG_EXE_STATIC),y)
	LDFLAGS += -static
else
	LDFLAGS += -L$(UCLIBCDIR)/usr/lib -L$(UCLIBCDIR)/lib -lpthread -lm
endif

#CFLAGS += -fdump-rtl-expand
ifeq ($(CONFIG_MEMWATCH), y)
CFLAGS += -DMEMWATCH
CFLAGS += -DMW_STDIO 
endif