如何找到一个图书馆与cmake？ [英] How to find a library with cmake?

问题描述

要将可执行文件与位于标准位置的库链接，可以在CmakeLists.txt文件中执行以下操作：

To link an executable with a library that resides in a standard location, one can do the following in a CmakeLists.txt file:

create_executable(generate_mesh generate_mesh.cpp)
target_link_libraries(generate_mesh OpenMeshCore)

如果正在链接的库位于

/usr/local/lib/libOpenMeshCore.dylib

但是，在这种情况下，库位于

However, in this case the library resides under

/usr/local/lib/OpenMesh/libOpenMeshCore.dylib

我如何指定target_link_libraries应该真的链接到一个库放置在sibdirectory？我不知道target_link_libraries有一些有用的选项，可以指定该库位于标准位置的子目录中，例如

How can I specify that target_link_libraries should really link against a library placed in a sibdirectory? I wonder there is some useful option to target_link_libraries that would specify that the library is in a subdirectory in a standandard location, e.g.

target_link_libraries(generate_mesh OpenMesh/OpenMeshCore)

如果不可能，有没有办法使用find_library搜索 / usr / local / lib 递归，包括给定库文件的子目录？

If that is not possible, is there a way to use find_library to search /usr/local/lib recursively, including its sub-directories, for the given library file?

推荐答案

您可以向 find_library 添加不同的目录。要使用此库，请通过 cmake -DFOO_PREFIX = / some / path ... 调用cmake。

You can add different directories to find_library. To use this library call cmake by cmake -DFOO_PREFIX=/some/path ....

find_library( CPPUNIT_LIBRARY_DEBUG NAMES cppunit cppunit_dll cppunitd cppunitd_dll
            PATHS   ${FOO_PREFIX}/lib
                    /usr/lib
                    /usr/lib64
                    /usr/local/lib
                    /usr/local/lib64
            PATH_SUFFIXES debug )

find_library( CPPUNIT_LIBRARY_RELEASE NAMES cppunit cppunit_dll
            PATHS   ${FOO_PREFIX}/lib
                    /usr/lib
                    /usr/lib64
                    /usr/local/lib
                    /usr/local/lib64
            PATH_SUFFIXES release )

if(CPPUNIT_LIBRARY_DEBUG AND NOT CPPUNIT_LIBRARY_RELEASE)
    set(CPPUNIT_LIBRARY_RELEASE ${CPPUNIT_LIBRARY_DEBUG})
endif(CPPUNIT_LIBRARY_DEBUG AND NOT CPPUNIT_LIBRARY_RELEASE)

set( CPPUNIT_LIBRARY debug     ${CPPUNIT_LIBRARY_DEBUG}
                    optimized ${CPPUNIT_LIBRARY_RELEASE} )

# ...
target_link_libraries(foo ${CPPUNIT_LIBRARY})

这篇关于如何找到一个图书馆与cmake？的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！