cmake: Fix #4038 MacOS target older OS and SDK versions#4191
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This fix ensures that when `MACOSX_DEPLOYMENT_TARGET` and `SDKROOT` are set, they are respected when building the libraries and executables.
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This fix ensures that when
MACOSX_DEPLOYMENT_TARGETandSDKROOTare set, they are respected when building the libraries and executables.How to test (on a MacOS machine):
You will have to download an older SDK version. In this case I'm using 11.3.
The output will include:
Without this fix, the output will looks something like:
Depending on the version of MacOS installed and the SDK installed.