Apologies. There was a silly mistake in the version posted on pastebin. Here is a corrected version http://pastebin.com/P95WNUP5
The problems I see with what I have written are: * The line "FIND_PACKAGE(ITK)" when FETCH_ITK is enabled is making things go wrong because the ITK library hasn't been downloaded yet. * Even if the above point wasn't a problem. When I run "cmake ../src/" again this isn't going to create a makefile that does what I want. The ITK library will downloaded all over again and then built. Any thoughts? Thanks, Dan. On 22 December 2011 13:40, Delcypher <[email protected]> wrote: > Hi, > > I'm starting work on a project that depends on the ITK library and I'm > using Arch Linux as my build platform. What I'd like to be able to do > is the following. > > * When the following is run > $ pwd > /home/dan/project/build-dir > $ cmake ../src/ > > for there to be a variable to be set it the cache (call it FETCH_ITK) > that allows the user to pick between building the ITK library or try > to use the system ITK library. Once the makefile is generated > I would like this to happen when make is executed. > > - If the user picked to build the ITK library and it HAS NOT been built then > the ExternalProject module is used to fetch and build ITK and then the > rest of the project is built. > > -If the user picked to build ITK and it HAS already been built then my > project is built WITHOUT attempting to rebuild the ITK library. With > ITK_DIR set appropriately so that FIND_PACKAGE(ITK) works. > > -If the user picked to not build ITK then my project is built. With > ITK_DIR not set to anything so that FIND_PACKAGE(ITK) works. > > I'm afraid I'm very new to cmake and I'm not quite sure how to do > this. I made a start which can be seen here > http://pastebin.com/xwiFPrY5 > > However it doesn't work. The ExternalProject() code seemed to work > okay in isolation but when I added everything else it didn't work. > > Any suggestions? > > Thanks, > Dan. -- 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
