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NDK_ROOT := $(shell dirname $(CC))/../../../../..
ifeq "$(findstring 64, $(ARCH))" "64"
# lowest 64-bit API level
API_LEVEL := 21
else ifeq "$(ARCH)" "i386"
# clone(2) declaration is present only since this api level
API_LEVEL := 17
else
# lowest supported 32-bit API level
API_LEVEL := 16
endif
ifeq "$(ARCH)" "arm"
SYSROOT_ARCH := arm
STL_ARCH := armeabi-v7a
TRIPLE := armv7-none-linux-androideabi
ARCH_CFLAGS += -march=armv7-a -mfloat-abi=softfp -mfpu=vfpv3-d16 -marm
else ifeq "$(ARCH)" "aarch64"
SYSROOT_ARCH := arm64
STL_ARCH := arm64-v8a
TRIPLE := aarch64-none-linux-android
else ifeq "$(ARCH)" "i386"
SYSROOT_ARCH := x86
STL_ARCH := x86
TRIPLE := i686-none-linux-android
else ifeq "$(ARCH)" "mips64r6"
SYSROOT_ARCH := mips64
STL_ARCH := mips64
TRIPLE := mips64el-none-linux-android
else ifeq "$(ARCH)" "mips32"
SYSROOT_ARCH := mips
STL_ARCH := mips
TRIPLE := mipsel-none-linux-android
else
SYSROOT_ARCH := $(ARCH)
STL_ARCH := $(ARCH)
TRIPLE := $(ARCH)-none-linux-android
endif
ifeq "$(findstring 86,$(ARCH))" "86"
TOOLCHAIN_DIR := $(STL_ARCH)-4.9
else ifeq "$(ARCH)" "arm"
TOOLCHAIN_DIR := arm-linux-androideabi-4.9
else
TOOLCHAIN_DIR := $(subst -none,,$(TRIPLE))-4.9
endif
ifeq "$(ARCH)" "arm"
TOOL_PREFIX := arm-linux-androideabi
else
TOOL_PREFIX := $(subst -none,,$(TRIPLE))
endif
ifeq "$(HOST_OS)" "Linux"
HOST_TAG := linux-x86_64
else ifeq "$(HOST_OS)" "Darwin"
HOST_TAG := darwin-x86_64
else
HOST_TAG := windows-x86_64
endif
GCC_TOOLCHAIN = $(NDK_ROOT)/toolchains/$(TOOLCHAIN_DIR)/prebuilt/$(HOST_TAG)
OBJCOPY ?= $(GCC_TOOLCHAIN)/bin/$(TOOL_PREFIX)-objcopy
ARCHIVER ?= $(GCC_TOOLCHAIN)/bin/$(TOOL_PREFIX)-ar
ifeq "$(findstring clang,$(CC))" "clang"
ARCH_CFLAGS += -target $(TRIPLE) -gcc-toolchain $(GCC_TOOLCHAIN)
ARCH_LDFLAGS += -target $(TRIPLE) -gcc-toolchain $(GCC_TOOLCHAIN)
endif
ARCH_CFLAGS += --sysroot=$(NDK_ROOT)/sysroot \
-isystem $(NDK_ROOT)/sysroot/usr/include/$(TOOL_PREFIX) \
-D__ANDROID_API__=$(API_LEVEL) \
-isystem $(NDK_ROOT)/platforms/android-$(API_LEVEL)/arch-$(SYSROOT_ARCH)/usr/include
ARCH_LDFLAGS += --sysroot=$(NDK_ROOT)/platforms/android-$(API_LEVEL)/arch-$(SYSROOT_ARCH) -lm
ARCH_CXXFLAGS += \
-isystem $(NDK_ROOT)/sources/cxx-stl/llvm-libc++/include \
-isystem $(NDK_ROOT)/sources/android/support/include \
-isystem $(NDK_ROOT)/sources/cxx-stl/llvm-libc++abi/include
ARCH_LDFLAGS += \
-L$(NDK_ROOT)/sources/cxx-stl/llvm-libc++/libs/$(STL_ARCH) \
$(NDK_ROOT)/sources/cxx-stl/llvm-libc++/libs/$(STL_ARCH)/libc++_static.a \
-lc++abi \
-nostdlib++
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