I'm not sure if this is a bug, but in my top level CMakeLists.txt file I try to do something like this:
cmake_minimum_required ( VERSION 2.8.11 FATAL_ERROR ) include ( checkOutOfSource.cmake ) include ( configureBuilds.cmake ) include ( configurePlatform.cmake ) enable_language ( C ) enable_language ( Fortran ) project ( ... ... Then in configurePlatform.cmake I have the following code: if (APPLE) set ( CMAKE_OSX_DEPLOYMENT_TARGET "10.6" CACHE STRING "Oldest OS X version to compile and link for." ) set_property ( CACHE CMAKE_OSX_DEPLOYMENT_TARGET PROPERTY STRINGS "10.6" "10.7" "10.8" "10.9" ) ... endif (APPLE) I'm using the Makefile generator, not Xcode, etc. The odd thing is that if I move the `include ( configurePlatform.cmake )` line after the calls to `enable_language` then CMAKE_OSX_DEPLOYMENT_TARGET *AND* CMAKE_OSX_SYSROOT become undefined even though I don't explicitly set or unset OSX_SYSROOT anywhere in my project. If I then set OSX_DEPLOYMENT_TARGET to a value, say 10.6, then the configure and generate steps fail with an error about how DEPLOYMENT_TARGET is set but not SYSROOT and it can't find the proper SDK. I thought this might be related to this bug report: http://cmake.3232098.n2.nabble.com/OSX-deployment-target-confusion-for-2-8-10-td7582284.html so I upgraded to the latest CMake (2.8.12) to see if it's fixed. The unset value of SYSROOT persists if DEPLOYMENT_TARGET is set after enable_language, but gets set by CMake if I set before these calls. Furthermore, a new warning is now issued: CMAKE_OSX_DEPLOYMENT_TARGET is '10.6' but the matching SDK does not exist However, according to the Xcode documentation this is a common, desired situation: DEPLOYMENT_TARGET specifies the oldest compatible OS X the code will work for, and the Apple developer docs urge developers to use the latest SDK with weak linking etc. Does anyone have any insight as to what is going on here? Izaak Beekman =================================== (301)244-9367 Princeton University Doctoral Candidate Mechanical and Aerospace Engineering ibeek...@princeton.edu UMD-CP Visiting Graduate Student Aerospace Engineering ibeek...@umiacs.umd.edu ibeek...@umd.edu
-- 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://www.cmake.org/mailman/listinfo/cmake