CMake 3.3.0 发布，自动化建构系统

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　　CMake 3.3.0 发布，值得关注的特性如下：

• 　　* The "if()" command learned a new "IN_LIST" operator that evaluates  to true if a given element is contained in a named list.
  　　
  
• 　　* The "add_dependencies()" command learned to allow dependencies to  be added to *interface libraries*. Dependencies added to an  interface library are followed transitively in its place since the  target itself does not build.
  　　
  
• 　　* The "find_library()", "find_path()", and "find_file()" commands now search in installation prefixes derived from the "PATH" environment variable.
  　　
  
• 　　* The "_VISIBILITY_PRESET" and "VISIBILITY_INLINES_HIDDEN"  target properties now affect compilation in sources of all target  types.  See policy "CMP0063".
  　　
  
• 　　* A "_INCLUDE_WHAT_YOU_USE" target property and supporting "CMAKE__INCLUDE_WHAT_YOU_USE" variable were introduced to tell  the *Makefile Generators* and the "Ninja" generator to run "include-  what-you-use" along with the compiler for "C" and "CXX" languages.
  

　　更多内容请查看：发行说明
　　CMake 是一个跨平台的自动化建构系统,它使用一个名为 CMakeLists.txt 的文件来描述构建过程,可以产生标准的构建文件,如 Unix 的 Makefile 或Windows Visual C++ 的 projects/workspaces 。文件 CMakeLists.txt 需要手工编写,也可以通过编写脚本进行半自动的生成。CMake 提供了比 autoconfig 更简洁的语法。在 linux 平台下使用 CMake 生成 Makefile 并编译的流程如下:

• 　　编写 CmakeLists.txt。
  
• 　　执行命令 “cmake PATH” 或者 “ccmake PATH” 生成 Makefile ( PATH 是 CMakeLists.txt 所在的目录 )。
  
• 　　使用 make 命令进行编译。