CMake 使用Tips

在编译时将编译产物放在build #

据网友所知，cmake文档中没有记录，仅出于兼容性原因或内部使用而保留：

-B和-H标志 #

cmake -Hpath/to/source -Bpath/to/build

甚至从源目录 -B #

重要：-B后没有空格

  • 该命令会自动创建build目录
  • 之后cd到build下去make即可
cmake . -Bbuild

样例记录 #

OpenCV #

  • CMakeLists.txt
  • 文件tree -L 1
|-- CMakeLists.txt
|-- DisplayImage.cpp
|-- DisplayImage.out
|-- cmake_install.cmake
|-- CMakeCache.txt
|-- CMakeFiles
|-- Makefile

cmake_minimum_required(VERSION 2.8)
project( DisplayImageExample )
find_package( OpenCV REQUIRED )
include_directories( ${OpenCV_INCLUDE_DIRS} )
add_executable( DisplayImage.out DisplayImage.cpp )
target_link_libraries( DisplayImage.out ${OpenCV_LIBS} )

Qt #