I am using Xcode 9.2.
If I create, build, and look at the build output for the default C command line program, I see clang being invoked with:
clang <stuff removed> -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.13.sdk <stuff removed>
I would like to be able to control the path passed to sysroot. Is this possible? If so, how?
I looked in the build settings for the project, but didn't see anything.