The workaround I found so far is to add a custom target that depends on the targets I want to build. So if I add this: add_custom_target(test12 DEPENDS test1 test2)
to my CMake file, and instead of running 'make -j test1 test2' I run 'make -j test12' everything seems to be fine... On Mon, Sep 30, 2013 at 1:07 PM, Rolf Eike Beer <e...@sf-mail.de> wrote: > Am Montag, 30. September 2013, 12:58:40 schrieb Jakub Schmidtke: > > Hi, > > > > I am trying to get dependencies right in a project that uses > auto-generated > > sources. > > I have a library, that uses auto-generated files, and other executables > > that use that library. > > I created a set of CMakeLists.txt files that show the problem. > > > > To run it you need test.c and org.c in the source directory, and one of > > them should contain int main(void) { return 0; } in it, > > the other can be empty. First try - the simplest approach: > > > > project(Test) > > > > add_custom_command(OUTPUT file.c > > COMMAND echo "GENERATING FILE" > > COMMAND rm -f file.c > > COMMAND cp -i ${CMAKE_CURRENT_SOURCE_DIR}/org.c file.c > > DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/org.c > > ) > > add_library(LibFile file.c) > > > > add_executable(test1 test.c) > > target_link_libraries(test1 LibFile) > > > > add_executable(test2 test.c) > > target_link_libraries(test2 LibFile) > > > > When I build it with 'make' it builds just fine. > > However, if (from the build/) directory I run: touch ../org.c; make -j > > test1 test2 it sometimes gives me this: > > > > [ 25%] [ 25%] Generating file.c > > Generating file.c > > GENERATING FILE > > GENERATING FILE > > cp: overwrite ‘file.c’? [ 25%] [ 25%] Built target gen_file > > Built target gen_file > > What a coincidence ;) I recently updated my CMake sources. I decided to do > a > partial rebuild as the executables themselves were in use and I wanted to > avoid any hassle. So I typed > > make -j 10 CMakeLib CPackLib CTestLib > > And that resulted in basically the same problem: make tried to link > CMakeLib > three times in parallel, obviously failing. So the problem here is not > limited > to generated files I think. > > Eike > -- > > Powered by www.kitware.com > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Kitware offers various services to support the CMake community. For more > information on each offering, please visit: > > CMake Support: http://cmake.org/cmake/help/support.html > CMake Consulting: http://cmake.org/cmake/help/consulting.html > CMake Training Courses: http://cmake.org/cmake/help/training.html > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Follow this link to subscribe/unsubscribe: > http://www.cmake.org/mailman/listinfo/cmake
-- Powered by www.kitware.com Please keep messages on-topic and check the CMake FAQ at: http://www.cmake.org/Wiki/CMake_FAQ Kitware offers various services to support the CMake community. For more information on each offering, please visit: CMake Support: http://cmake.org/cmake/help/support.html CMake Consulting: http://cmake.org/cmake/help/consulting.html CMake Training Courses: http://cmake.org/cmake/help/training.html Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Follow this link to subscribe/unsubscribe: http://www.cmake.org/mailman/listinfo/cmake