On 09/19/2011 01:14 AM, Tim Gallagher wrote: > Hi, > > I've been trying to figure out the exact differences between the > export() and install(export ...) functions and I have some questions > still. > > From the documentation, EXPORT() makes available the build tree for > a given target and puts the path to the build tree in the > ~/.cmake/packages/<project> directory while INSTALL(EXPORT ...) > makes the install tree available. > > What I don't understand is what happens with EXPORT() if you have > multiple builds of the same project. For example, we often build (in > two different directories) the same project with two compilers > (Intel and GNU) and install them in two different locations. But the > entries in the registry just show path names. How would > find_package() work in that instance?
the ~/.cmake/packages/<project> registry is only queried if you don't specify a <project>_DIR variable which points to a directory containing the <lower-project>-config.cmake (or <project>Config.cmake) file. If not specified, find_package() will use the latest build tree registered in ~/.cmake/package/<project>. > > When using INSTALL(EXPORT ...), I can get the information I need by > INCLUDE'ing the file, but I cannot find that file without the user's > input. Is there a way to put the path to the install tree in the > registry? If so, how would find_package() behave with multiple > installs? See the documentation of the find_package() command for information on where CMake looks for <project>Config.cmake files. > > If anybody has any suggestions, I would appreciate it. > > Tim Does this help? Michael _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake
