如何指示CMake查找MacPorts安装的库?

将/opt/local/lib和任何其他可能的安装路径添加到cmake在CMakeLists.txt文件中搜索的路径集中:

set(CMAKE_LIBRARY_PATH ${CMAKE_LIBRARY_PATH} /opt/local/lib)

这会将/opt/local/lib追加到cmake搜索库的路径集中。这 CMAKE_LIBRARY_PATH 技术将影响所有人 find_library

find_library(Foo foo
    PATHS /opt/local/lib)

请注意,这是正确的 硬编码/opt/local/lib是查找库的唯一位置。相反,它只是将/opt/local/lib附加到要搜索库的位置集。我经常添加许多这样的路径,覆盖我所知道的所有机器上观察到的位置。见 find_library documentation 更多关于这个主题的变化。

你也可能希望改变 CMAKE_INCLUDE_PATH find_file() 和 find_path() 命令。

达尔文 “它添加了必要的include和library路径。我希望有一个更自动化的东西,但至少它解决了这个问题。

:

SET(CMAKE_SYSTEM_NAME Darwin)

# Add MacPorts
INCLUDE_DIRECTORIES(/opt/local/include)
LINK_DIRECTORIES(/opt/local/lib)

CMake需要尊重 DYLD_LIBRARY_PATH 环境变量,它等效于 LD_LIBRARY_PATH Linux上的环境变量。你的 需要有正确的路径才能找到MacPorts安装的库。

每@nerling's 评论一下公认的解决方案,下面是一个检测MacPorts前缀路径的建议。

MyModule.cmake

# Detect if the "port" command is valid on this system; if so, return full path
EXECUTE_PROCESS(COMMAND which port RESULT_VARIABLE DETECT_MACPORTS OUTPUT_VARIABLE MACPORTS_PREFIX ERROR_QUIET OUTPUT_STRIP_TRAILING_WHITESPACE)

IF (${DETECT_MACPORTS} EQUAL 0)
    # "/opt/local/bin/port" doesn't have libs, so we get the parent directory
    GET_FILENAME_COMPONENT(MACPORTS_PREFIX ${MACPORTS_PREFIX} DIRECTORY)

    # "/opt/local/bin" doesn't have libs, so we get the parent directory
    GET_FILENAME_COMPONENT(MACPORTS_PREFIX ${MACPORTS_PREFIX} DIRECTORY)

    # "/opt/local" is where MacPorts lives, add `/lib` suffix and link
    LINK_DIRECTORIES(${LINK DIRECTORIES} ${MACPORTS_PREFIX}/lib)

    MESSAGE("WINNING!: ${MACPORTS_PREFIX}/lib")
ENDIF()

# Recommendation, also add a "brew --prefix" custom command to detect a homebrew build environment

安装 cmake pkgconfig 用MacPorts。

port install cmake pkgconfig

使用pkgconfig查找libs的CMake生成文件将使用MacPorts安装的pkgconfig,当然,它将具有MacPorts安装的库的正确搜索路径。

FindPkgConfig FindLibuv.cmake

find_package (PkgConfig)
pkg_check_modules (PC_Libuv QUIET libuv)