I ran into this today. I tried to use /MD to link against a custom md library, but because _DEBUG was defined *by CMake* I couldn't use it out of the box.
Why is CMake defining _DEBUG for MSVC projects anyways? _DEBUG is automatically defined when using /MDd, and I don't believe it should be defining it itself. I've had to remove it for multiple projects because it's making assumptions as to what I want defined. Default for CMAKE_CXX_FLAGS_DEBUG_INIT /D_DEBUG /MDd /Zi /Ob0 /Od /RTC1 I don't think that first define should be there. Reference: https://github.com/Kitware/CMake/blob/5d29506811c5b75ae48e12de6c317f6440874215/Modules/Platform/Windows-MSVC.cmake#L294 https://msdn.microsoft.com/en-us/library/0b98s6w8.aspx On Fri, Nov 11, 2016 at 9:42 AM, Stephan Menzel <[email protected]> wrote: > > On Tue, Nov 8, 2016 at 4:21 PM, <[email protected]> wrote: >> >> If you are going to use /MD instead of /MDd, then you probably also need >> to remove the _DEBUG preprocessor flag. >> IIRC, I've seen cases where defining _DEBUG includes symbols only >> defined by the debug runtimes. >> >> Clint >> > > What a surprise. Removing _DEBUG did the trick. I was under the impression > _DEBUG only controls Microsoft STL impl's debug iterator stuff but > apparently it also makes the resulting exe link with /MD rather than /MDd. > Guess that was wrong. > > So yes, problem solved. > > Thank you! > > Stephan > > -- > > 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
