On 23/09/2016 22:35, Gregor Jasny wrote: > On 21/09/2016 10:54, James Turner wrote: >> >>> On 20 Sep 2016, at 16:00, Braden McDaniel <bra...@endoframe.com> wrote: >>> >>> When setting CMAKE_OSX_SYSROOT to the unversioned directory name (using >>> Xcode 8, as it happens) and setting CMAKE_OSX_DEPLOYMENT_TARGET, I get this >>> error: >>> >>> >>> -- The CXX compiler identification is AppleClang 8.0.0.8000038 >>> CMake Error at >>> /Applications/CMake.app/Contents/share/cmake-3.6/Modules/Platform/Darwin.cmake:76 >>> (message): >>> CMAKE_OSX_DEPLOYMENT_TARGET is '10.10' but CMAKE_OSX_SYSROOT: >>> >>> "/Applications/Xcode-8.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk" >>> >>> is not set to a MacOSX SDK with a recognized version. Either set >>> CMAKE_OSX_SYSROOT to a valid SDK or set CMAKE_OSX_DEPLOYMENT_TARGET to >>> empty. >>> Call Stack (most recent call first): >>> /Applications/CMake.app/Contents/share/cmake-3.6/Modules/CMakeSystemSpecificInformation.cmake:36 >>> (include) >>> CMakeLists.txt:37 (project) >>> >>> >>> I'm able to suppress the error by using the versioned (symlink) directory; >>> but isn't the premise of this error message invalid? As I understand it, >>> since Xcode 7 (or perhaps earlier?), there is no requirement that the >>> deployment target match the SDK version.
The deployment target gives you backwards compatibility back to the specified version. In your example the binary should be runnable on macOS 10.10 and later even that you used a newer SDK. That way you have access to the latest SDK features which you could use after a thorough check at runtime. >> I’m seeing a similar error when setting CMAKE_OSX_DEPLOYMENT_TARGET to 10.7 >> with XCode 8, and leaving CMAKE_OSX_SYSROOT unset. I’m couldn’t identify >> where (from Modules/Platform/Darwin.cmake) the detected value of >> _CMAKE_OSX_SYSROOT is computed. (I don’t wish to explicitly set it) Will be fixed, too. > Could you please file a bug report and CC me? I'll try to submit a patch > next week but would appreciate a reminder :) I filed https://gitlab.kitware.com/cmake/cmake/issues/16323 and will push a fix soon. -- 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
