step1: 文件初始的放置并且编写好了cmake
xxx/project/main.c
xxx/project/CMakelists.txt
xxx/project/build
step2:
在build中输入 cmake ..
xxx/project/main.c
xxx/project/CMakelists.txt
xxx/project/build
xxx/project/build/ CMakeFiles
xxx/project/build/ CMakeCache.txt
xxx/project/build/Makefile
xxx/project/build/camk_install.cmake
step3:
在build中输入
make
xxx/project/main.c
xxx/project/CMakelists.txt
xxx/project/build
xxx/project/build/ CMakeFiles
xxx/project/build/ CMakeCache.txt
xxx/project/build/hello
xxx/project/build/Makefile
xxx/project/build/camk_install.cmake
外部构建的两个变量位置发生了改变