CMake项目交叉编译非侵入配置

http://t.zoukankan.com/uestc-mm-p-15666249.html

定义arm_linux_setup.cmake文件

set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_PROCESSOR arm)

set(tools /home/wh/work/cross_compile/gcc-linaro-7.3.1-2018.05-x86_64_arm-linux-gnueabihf)
set(CMAKE_C_COMPILER ${tools}/bin/arm-linux-gnueabihf-gcc)
set(CMAKE_CXX_COMPILER ${tools}/bin/arm-linux-gnueabihf-g++)

注意，工具链文件的指定一定要紧跟cmake命令之后，不能放到 .. 后面
cmake -DCMAKE_TOOLCHAIN_FILE=../arm_linux_setup.cmake -DCMAKE_INSTALL_PREFIX=/XXX/XXX ..