On Tuesday 20 December 2011, Benjamin Eikel wrote: > Hello Alexander, > > Am Montag, 19. Dezember 2011 um 21:19:04 schrieb Alexander Neundorf: > > On Monday 19 December 2011, Benjamin Eikel wrote: > > > Hello Alexander, > > > > > > Am Montag, 12. Dezember 2011, 21:51:54 schrieb Alexander Neundorf: > > > > Here is an example which shows just that: > > > > https://projects.kde.org/projects/kde/kdeexamples/repository/revision > > > > s/ ma st er/show/buildsystem/HowToInstallALibrary > > > > > > > > It's not "final" yet, i.e. I'll work on improving it in the next > > > > weeks. > > > > > > thank you very much for this example project. It helped me a lot to > > > understand especially the EXPORT usage. > > > > > > I know that you wrote that the project is not finished yet, but allow > > > me to ask a question: > > > > > > In the "example/CMakeLists.txt": Is line 5, which calls > > > "include(FindPackageHandleStandardArgs)", really needed? I think if > > > BAR_FOUND would be checked, it should be called. > > > > Line 6 is commented out because it relies on a feature in cmake 2.8.3, > > but when I committed the example I made it depend only on 2.6.4. > > > > Does that answer your question ? > > Yes, it's clear now. > > > > I would greatly appreciate it if you could extend the example, or > > > provide a second example, that uses an external library. So for > > > example a library Foo depending on LibXml2. Some functionality of Foo > > > depends on whether LibXml2 was found or not. Therefore it creates > > > "Foo_Config.h" with > > > "configure_file" defining something like LIB_XML2. I would like to see > > > how this could be correctly installed and found by an application using > > > Foo. Would it be simply adding the config header file to the set of > > > exported header files? > > > > I'd put that information into the installed FooConfig.cmake, something > > like: set(FOO_HAS_LIBXML2_FEATURES TRUE) > > Okay. Then it would be possible to set compile definitions depending on > this variable. But it would only work for projects using CMake, too. The > header file could be used by projects using any build system.
You can put the information of course in both places. Alex -- 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
