CompilerABI: always do the ABI compilation as an EXECUTABLE
All callers of CMAKE_DETERMINE_COMPILER_ABI pass a source
file with a main().
This fixes the c++ implicit library not detected for iOS, tvOS, watchOS, visionOS.
All callers of CMAKE_DETERMINE_COMPILER_ABI pass a source
file with a main().
This fixes the c++ implicit library not detected for iOS, tvOS, watchOS, visionOS.