build/cmake/android-toolchain.cmake

set(ANDROID_NDK "/opt/android-ndk" CACHE)
set(ANDROID_PLATFORM "android-15" CACHE)
set(ANDROID_ARCH "arch-arm" CACHE)
set(ANDROID_TOOL_ARCH "android-arm" CACHE)
set(ANDROID_CPU "armeabi-v7a" CACHE)
set(ANDROID_GCC_VERSION 4.9 CACHE)
set(HOST_ARCH linux-x86_64 CACHE)

set(CMAKE_SYSTEM_NAME Android)
set(ANDROID_SYSROOT "${ANDROID_NDK}/platforms/${ANDROID_PLATFORM}/${ANDROID_ARCH}")
set(ANDROID_TRIPLET arm-linux-androideabi)
set(ANDROID_STL "${ANDROID_NDK}/sources/cxx-stl/gnu-libstd++/${ANDROID_GCC_VERSION}")

set(_COMPILER_ROOT ${ANDROID_NDK}/prebuilt/${ANDROID_TRIPLET}-${ANDROID_GCC_VERSION}/prebuilt/${HOST_ARCH})
set(CMAKE_C_COMPILER ${_COMPILER_ROOT}/bin/${ANDROID_TRIPLET}-gcc)
set(CMAKE_CXCX_COMPILER ${_COMPILER_ROOT}/bin/${ANDROID_TRIPLET}-g++)

include_directories(
    ${ANDROID_STL}/include
    ${ANDROID_STL}/libs/${ANDROID_CPU}/include)

set(CMAKE_FIND_ROOT_PATH ${ANDROID_SYSROOT})

set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)