[CMake] CMake Platform 구분하는 법

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아래 예제 코드로 설명을 대체 합니다.

1. Platform Variables

• UNIX : is TRUE on all UNIX-like OS’s, including Apple OS X and CygWin
• WIN32 : is TRUE on Windows. Prior to 2.8.4 this included CygWin
• APPLE : is TRUE on Apple systems. Note this does not imply the
• system is Mac OS X, only that APPLE is #defined in C/C++ header files.
• MINGW : is TRUE when using the MinGW compiler in Windows
• MSYS : is TRUE when using the MSYS developer environment in Windows
• CYGWIN : is TRUE on Windows when using the CygWin version of cmake

CMakeLists.txt 예제

if (UNIX)
    # do something
elseif(WIN32)
    # do something
elseif(APPLE)
    # do something
endif()

2. CMake System

• Windows : Windows (Visual Studio, MinGW GCC)
• Darwin : macOS/OS X (Clang, GCC)
• Linux : Linux (GCC, Intel, PGI)
• Android : Android NDK (GCC, Clang)
• FreeBSD : FreeBSD
• CrayLinuxEnvironment : Cray supercomputers (Cray compiler)
• MSYS : Windows (MSYS2 shell native GCC)

CMakeLists.txt 예제

if (CMAKE_SYSTEM_NAME MATCHES "Windows")
    # do something
elseif(CMAKE_SYSTEM_NAME MATCHES "Linux")
    # do something
elseif(CMAKE_SYSTEM_NAME MATCHES "Darwin")
    # do something
elseif(CMAKE_SYSTEM_NAME MATCHES "Android")
    # do something
endif()

Reference

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• https://gitlab.kitware.com/cmake/community/-/wikis/doc/tutorials/How-To-Write-Platform-Checks#platform-checking
• https://gitlab.kitware.com/cmake/community/-/wikis/doc/tutorials/How-To-Write-Platform-Checks#cmake-system