If your set CMAKE_OSX_DEPLOYMENT_TARGET in order to get find modules to work on
Xcode6 or above you get this message:
$ cmake -D CMAKE_OSX_DEPLOYMENT_TARGET=10.8 .
CMAKE_OSX_DEPLOYMENT_TARGET is '10.8' but the matching SDK does not exist
at:
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.8.sdk"
Instead using SDK:
"/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk".
Call Stack (most recent call first):
/Applications/CMake.app/Contents/share/cmake-3.5/Modules/CMakeSystemSpecificInitialize.cmake:18
(include)
CMakeLists.txt:25 (project)
CMake is setting the value of --mmacosx-version-min= to this value. Which SDK
you have does not need to be the same as the target deployment (which can be
less than the SDK). That is to say the 10.10sdk can target 10.8, meaning code
compiled with 10.8 set as the target will run on 10.8, 10.9 and 10.10 machines.
- James
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