On 07/27/2011 04:28 PM, r.cze...@esa-grimma.de wrote: > Hi all, > > I tried to cross-compile an internal application for windows on a linux > machine, > but failed, because cmake at some point re-start the configure process, > and > drops the CMAKE_SYSTEM_NAME variable along that way. Attached is a > minimal CMakeLists.txt, which reproduces the problem. > > Is there a way to avoid the reconfiguration? > > TIA > R. Czerny > > > Console output: > someone@debian-vm:~/cross/build$ cmake -DCMAKE_SYSTEM_NAME=Windows > -DCMAKE_C_COMPILER=i586-mingw32msvc-gcc > -DCMAKE_RC_COMPILER=i586-mingw32msvc-windres .. > -- The C compiler identification is GNU > -- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc > -- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc -- works > -- Detecting C compiler ABI info > -- Detecting C compiler ABI info - done > -- CC=TRUE CSN=Windows > -- Configuring done > You have changed variables that require your cache to be deleted. > Configure will be re-run and you may have to reset some variables. > The following variables have changed: > CMAKE_RC_COMPILER= i586-mingw32msvc-windres > > -- The C compiler identification is GNU > -- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc > -- Check for working C compiler: /usr/bin/i586-mingw32msvc-gcc -- works > -- Detecting C compiler ABI info > -- Detecting C compiler ABI info - done > -- CC=FALSE CSN=Linux > -- Configuring done > -- Generating done > -- Build files have been written to: /home/czerny/Quellen/hospec/foo/foo
When reconfiguring an already configured project, specifying certain variables like CMAKE_C_COMPILER invalidates the cache and makes CMake do another reconfiguration during which the command line settings are lost, CMAKE_SYSTEM_NAME in your case; cf. [1-3]. AFAIK, the best you can do is to use one build tree per toolchain from the first and specify compilers by the environment variables CC, CXX, FC etc. Regards, Michael [1] http://www.mail-archive.com/cmake@cmake.org/msg34486.html [2] http://www.mail-archive.com/cmake@cmake.org/msg37060.html [3] http://public.kitware.com/Bug/view.php?id=9980 _______________________________________________ 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
