The command "add_dependencies" [0] only works on targets. See the CMake Tutorial for how to generate files as part of the build that later targets rely on. [1].
[0] https://cmake.org/cmake/help/v2.8.12/cmake.html#command:add_dependencies [1] https://cmake.org/cmake-tutorial/#s5 On Fri, Oct 23, 2015 at 7:35 PM, Martin Braun <martin.br...@ettus.com> wrote: > Hey, > > I'm at a loss here: > > I have a command that's run with add_custom_command(). I need to run it > before compiling a library that I add with add_library(), because it > generates some header files. > > This was my first try: > > file1: > {{{ > add_custom_command( > OUTPUT foo.hpp > COMMAND bar > ) > }}} > > file2: > {{{ > add_library(baz ${sources}) > add_dependencies(baz ${CMAKE_BINARY_DIR}/path/to/foo.hpp) > }}} > > ==> This didn't work. If I run make -j4, it will always try and compile > my ${sources} before it ran the command. Maybe I'm specifying targets > the wrong way? > > Next try: > > file1: > {{{ > add_custom_command(TARGET baz > PRE_BUILD > OUTPUT foo.hpp > COMMAND bar > ) > }}} > > file2: > {{{ > add_library(baz ${sources}) > }}} > > > ==> Same behaviour. > > I'm using CMake 2.8.2.12. Really, I need something that works with CMake > 2.8.0 because that's the minimum we guarantee our customers. > > Any ideas? Thanks in advance! > > Cheers, > Martin > -- > > 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://public.kitware.com/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://public.kitware.com/mailman/listinfo/cmake
