> does the external project's configure step re-run when you edit only the > CMAKE_CACHE_ARGS for it?
Yes. Verified with the following example: ---- cmake_minimum_required(VERSION 3.2) project(CMakeExternalProjectGenExpr) include(ExternalProject) set(ZF_QUEUE_INSTALL_PREFIX "${CMAKE_CURRENT_BINARY_DIR}/zf_queue.install") ExternalProject_Add(zf_queue_ep GIT_REPOSITORY https://github.com/wonder-mice/zf_queue.git UPDATE_COMMAND "" INSTALL_DIR ${ZF_QUEUE_INSTALL_PREFIX} CMAKE_CACHE_ARGS -DCMAKE_INSTALL_PREFIX:string=<INSTALL_DIR>) On Fri, Apr 17, 2015 at 4:19 AM, David Cole <dlrd...@aol.com> wrote: > With this change, does the external project's configure step re-run > when you edit only the CMAKE_CACHE_ARGS for it? > > (It did with the *.in / configure_file approach...) > > > On Fri, Apr 17, 2015 at 12:55 AM, Andrey Pokrovskiy > <wonder.m...@gmail.com> wrote: >> In current implementation of ExternalProject_Add generator expressions >> are supported in CMAKE_ARGS (probably by coincidence), but not in >> CMAKE_CACHE_ARGS. This patch will enable generators expressions in >> CMAKE_CACHE_ARGS. >> >> Use case: >> set(LIBEV_LIBRARIES $<TARGET_FILE:ev>) >> ExternalProject_Add( >> ... >> CMAKE_CACHE_ARGS >> -DLIBEV_LIBRARIES=${LIBEV_LIBRARIES} >> ...) >> >> --- >> Modules/ExternalProject.cmake | 5 +---- >> 1 file changed, 1 insertion(+), 4 deletions(-) >> >> diff --git a/Modules/ExternalProject.cmake b/Modules/ExternalProject.cmake >> index 0c73d41..1c7cf51 100644 >> --- a/Modules/ExternalProject.cmake >> +++ b/Modules/ExternalProject.cmake >> @@ -1126,10 +1126,7 @@ function(_ep_write_initial_cache target_name >> script_filename script_initial_cach >> # Replace location tags. >> _ep_replace_location_tags(${target_name} script_initial_cache) >> # Write out the initial cache file to the location specified. >> - if(NOT EXISTS "${script_filename}.in") >> - file(WRITE "${script_filename}.in" "\@script_initial_cache\@\n") >> - endif() >> - configure_file("${script_filename}.in" "${script_filename}") >> + file(GENERATE OUTPUT "${script_filename}" CONTENT >> "${script_initial_cache}") >> endfunction() >> >> >> -- >> 2.3.2 (Apple Git-55) >> >> -- >> >> 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-developers -- 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-developers