On 11/03/2022 00.35, Brett Cannon wrote:
> I brought this up on python-dev at
> https://mail.python.org/archives/list/python-dev@python.org/thread/ZPBSHENP3V7KHNPYWE6BEQD5ASES2NLV/
> <https://mail.python.org/archives/list/python-dev@python.org/thread/ZPBSHENP3V7KHNPYWE6BEQD5ASES2NLV/>
> , and the feedback seemed supportive. As such, I am bringing a draft of
> what I'm thinking will go into PEP 11 with a bunch of `XXX` placeholders
> for people to help me fill in to see how this will look overall.
>
> For any platform(s) you support, please reply with any relevant details
> that should be added to the relevant tables below. Once I have these
> details I will loop back with the proposed update to PEP 11 and make
> sure everyone is still on board with the proposal.


A few remarks:

autoconf, GCC, and Debian call it "Target Triplet". Clang and Rust use
"Target Triple". Should we stick with the clang name or use the GCC name?

Target triplets are machine-vendor-os. They come in short, normalized
form and in long, extended form. The normalized form often omits the
vendor field. Your document has both long and short forms.
"wasm32-unknown-emscripten" is extended form for "wasm32-emscripten",
while "x86_64-windows-msvc" is the short form of
"x86_64-pc-windows-msvc". I recommend to stick to one convention.

By the way config.guess script and gcc can dump the current triplet. The
config.sub script can be used to normalize and validate a triplet (does
not work for MSVC). The output of config.guess is more specific than the
gcc machine info. Here is a dump from my RPi:

$ ./config.guess
armv7l-unknown-linux-gnueabihf
$ gcc -dumpmachine
arm-linux-gnueabih
$ ./config.sub arm-linux-gnueabihf
arm-unknown-linux-gnueabihf


> ========================= ==========================
> ============================================== ========
> Target Triple             Notes                      Buildbot           
>                              Contacts
> ========================= ==========================
> ============================================== ========
> wasm32-unknown-emscripten XXX                        XXX                 
>                             Brett Cannon, Christian Heimes
> wasm32-unknown-wasi       XXX                        XXX                 
>                             Brett Cannon, Christian Heimes
> ========================= ==========================
> ============================================== ========

It's a bit premature to add wasm32-wasi. Python doesn't even compile on
WASI yet.

Christian