Patch for iOS/tvOS/watchOS simulator support in config.sub

[Russell Keith-Magee]

Please find attached a patch adding support for:

* Normalising the watchOS CPU architecture descriptor used by Apple (arm64_32) 

* Accepting the -simulator suffix for descriptors for iOS, tvOS and watchOS. 

The following is the list of compiler triples generated by Apple’s clang toolchains for iOS 12.0, tvOS 9.0, and watchOS 4.0:

arm64-apple-ios12.0

x86_64-apple-ios12.0-simulator

arm64-apple-ios12.0-simulator

arm64-apple-tvos9.0

x86_64-apple-tvos9.0-simulator

arm64-apple-tvos9.0-simulator

arm64_32-apple-watchos4.0

arm64-apple-watchos4.0-simulator

The -simulator suffix is significant because iOS devices and iOS simulators have a different ABI. It is therefore essential that these can be differentiated in a compiler triple.

A patch including these changes was submitted on Aug 31 2023; this patch appears to have been partially applied in commit b8c9b833, but these two changes were omitted. I received no correspondence explaining why the patch was only partially applied; I am therefore submitting them again in the hope they will be merged.

Yours

Russell Keith-Magee %-)

config.sub.diff
Description: Binary data