I also have a testing branch set up to check CMAKE_OSX_DEPLOYMENT_TARGET and the compiler command in the CI builds: GitHub CI builds MacOS 10.15 (without the new library, with CMAKE_OSX_DEPLOYMENT_TARGET) and 11 (with the new library, with CMAKE_OSX_DEPLOYMENT_TARGET), and Circle CI builds MacOS 12 (with the new library, but without CMAKE_OSX_DEPLOYMENT_TARGET). Documentation CMAKEPROJECTVERSION New in version 3.12. I'm trying to resolve an issue in my library here. something equivalent to _MAC_OS_X_VERSION_MIN_REQUIRED), so that it can decide whether or not to link with the new library. by setting CMAKE_OSX_DEPLOYMENT_TARGET), since the new library will still exist.Įssentially, I would like a way for CMake to figure out the deployment target that ultimately gets chosen (i.e. This does not work when users want to target a lower version (e.g. find_library(UNIFORMTYPEIDENTIFIERS_LIBRARY UniformTypeIdentifiers)). Checking if the library exists by using find_library() (e.g.
Mac check cmake version code#
When not defined, clang doesn't get the flag, but since clang is given something like -isysroot /Applications/Xcode-13.3.1.app/Contents/Developer/Platforms/atform/Developer/SDKs/MacOSX12.3.sdk, the framework sets _MAC_OS_X_VERSION_MIN_REQUIRED to something default (12.3), and so the source code is able to still perform conditional compilation. However, it turns out that this may not necessarily be defined. This flag is what CMake uses to pass the -mmacosx-version-min flag to clang, that makes it use a particular deployment target. I can't seem to find any way to figure out the target SDK version in CMake. File-Based API The cmake-file-api (7) 'codemodel' version 2 version field has been updated to 2.5. link the new library if targeting a newer SDK version, and skip the new library otherwise. Configure Log CMake now writes a YAML log of configure-time checks to CMakeFiles/CMakeConfigureLog.yaml under the top of the build tree. This means that the target_link_libraries() in CMake has to account for this, i.e. However, when targeting a newer SDK version, I would like to use features from a new library (specifically the UniformTypeIdentifiers library) that is not available on an older SDK version. Typically, performing conditional compilation on that macro suffices, and everything is nice and good. This can be done by checking the _MAC_OS_X_VERSION_MIN_REQUIRED macro, which tells us the target SDK version, in the source code.
Mac check cmake version install#
CMake can be installed by apt-get: > sudo apt-get -y install cmake > which cmake /usr/bin/cmake > cmake -version cmake version 2.8.12.2.
Mac check cmake version download#
CMake can be installed using your default system package manager or by getting binaries from Download page. I have code that I want to conditionally compile depending on the target SDK version, so that I can use newer features if possible. Obviously to use some tool you need to install it first.
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