Hi Andre, I can think of two ways. One is using target properties COMPILE_FLAGS and COMPILE_DEFINITIONS to setup flags on a per-target basis. Unfortunately, there's no per-config version of those :-(
Another is to separate your targets into directories added by add_subdirectory(). I believe you can then override variables in the subdirectory without affecting the parent directory. Note that these are parent/subdirectory in CMake sense, they can actually be siblings or unrelated on disk. Petr On Tue, Apr 17, 2012 at 10:01 PM, André Caron <andre.l.ca...@gmail.com> wrote: > Hi all, > > I've posted this issue on StackOverflow[1] and have not yet received a > suitable response, so I thought I'd ask here instead. > > Basically, I need to have a single build that uses two sets of > compiler flags. One set is used to build native windows applications, > and the other to build a managed (C++.net) application. It is my > understanding that CMake kind of goes out of its way so that compiler > flags are uniform throughout the project because this is usually the > Right Thing(TM) -- actually, this is one of the reasons I like CMake. > > How can I create a CMake build script so that I have a subset of > targets that build using a specific set of compiler flags, and another > subset of targets that build with another set of compiler flags? > Please keep in mind that I can't "switch" between either set of flags > like I would for debug and release modes because I'm always building > all the targets. > > I currently have this little helper macro (I understand why this is > wrong, see below): > > # Compile managed (.NET) program. > macro(add_managed_executable target) > # Enable managed C++ extensions. > if(NOT ${CMAKE_CXX_FLAGS} MATCHES "/clr") > set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /clr") > endif() > # Remove incompatible settings. > if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/RTC") > string(REGEX REPLACE > "/RTC(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" > ) > endif() > if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/MT") > string(REGEX REPLACE > "/MT(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" > ) > endif() > if(${CMAKE_CXX_FLAGS_DEBUG} MATCHES "/MD") > string(REGEX REPLACE > "/MD(.+)" "" CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG}" > ) > endif() > # Add target. > add_executable(${target} WIN32 ${ARGN}) > endmacro() > > However, as expected, this completely screws up my build because > changing CMAKE_CXX_FLAGS* affects the other targets, not only the one > specified in the add_executable() call inside the macro. > > Thanks, > André > > [1]: http://stackoverflow.com/q/10167175/313063 > -- > > 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 -- 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