pypy: fails to install on Big Sur because there is no libc.dylib

[mamoll (Mark Moll)]

This is the error I see:

[translation:ERROR] AssertionError: Cannot find C library, ctypes.util.find_library('c') returned None

Indeed, on Big Sur there appears to be no libc.dylib.

[danchr (Dan Villiom Podlaski Christiansen)]

I believe this is a genuine issue in PyPy; it does not build on Big Sur. I tried building it with CPython, but extension modules fail.

EDIT: Indeed it is: ​https://foss.heptapod.net/pypy/pypy/-/issues/3314

[greyhare]

Someone just pushed a merge request (​https://foss.heptapod.net/pypy/pypy/-/merge_requests/798) to fix this upstream. Hope it'll get merged soon.

[danchr (Dan Villiom Podlaski Christiansen)]

Replying to greyhare:

Someone just pushed a merge request (​https://foss.heptapod.net/pypy/pypy/-/merge_requests/798) to fix this upstream. Hope it'll get merged soon.

Yeah, I'm currently testing that, and if the build succeeds, I'll push an update!

[danchr (Dan Villiom Podlaski Christiansen)]

Fixed in ​https://github.com/macports/macports-ports/commit/2c32af7f11d8aa8366b3fe28dcd6ff18249d4db6 — tried tagging this, but to no avail:

pypy: upgrade to 7.3.3; fix big sur build

The released version of PyPy does not build (or work) on Big Sur, due
to changes in how dyld works. So, we use CPython instead for building
PyPy 2.7 on Big Sur, and apply a back-ported merge request[1].

While at it, I've applied a patch to force Thin LTO[2] so the overhead
isn't quite so large, suppressed building native modules during the
`build` stage, and removed some hacks related to platforms other than
x86-64.

(The port remains restricted to x86-64; I've added a note pointing to
a blog requesting help for ARM64 support. A JIT targeting macOS on
PowerPC isn't going to happen.)

Fixes #61659

[1] https://foss.heptapod.net/pypy/pypy/-/merge_requests/798
[2] https://clang.llvm.org/docs/ThinLTO.html

[jmroot (Joshua Root)]

To auto-close the ticket, you need to list the full URL in the commit message, like this: Fixes: https://trac.macports.org/ticket/61659