pypy: support 3.9

[davidhewitt]

cc @mattip

[davidhewitt]

As discussed in #2137 this will be blocked until the next PyPy rc.

[davidhewitt]

Added a commit to support the newly released PyPy 3.9

[mattip]

I think there are merge conflicts?

[mejrs]

I think there are merge conflicts?

Resolved :) Let's hope this works...

[mattip]

Many CI runs are failing.

[mejrs]

Looks like most of them were failing due to a variable that wasn't renamed, but the pypy3.9 runners are failing to a link error.

error LNK2019: unresolved external symbol PyPyCFunction_NewEx referenced in function
and
/usr/bin/ld: cannot find -lpypy3-c
and
= note: ld: library not found for -lpypy3-c

[davidhewitt]

Looks like the lib name has added the minor version in PyPy 3.9:

$ python
Python 3.9.10 (8276b505180f70c5784a698a510f0a17317a85c3, Feb 19 2022, 16:51:03)
[PyPy 7.3.8 with GCC Apple LLVM 13.0.0 (clang-1300.0.29.30)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>>> import sysconfig
>>>> sysconfig.get_config_var("LIBDIR")
'/Users/david/tools/pypy3.9-v7.3.8-osx64/bin'
>>>> sysconfig.get_config_var("LDLIBRARY")
'libpypy3-c.dylib'

$ ls /Users/david/tools/pypy3.9-v7.3.8-osx64/bin
libpypy3.9-c.dylib	pypy3			python			python3.9
pypy			pypy3.9			python3

$ ls /Users/david/tools/pypy3.7-v7.3.8-osx64/bin
libpypy3-c.dylib	pypy3			python			python3.7
pypy			pypy3.7			python3

Compare libpypy3.9-c.dylib containing the minor version versus 3.7's libpypy3-c.dylib.

@mattip are you able to comment on whether this is intended / expected? Note also that LDLIBRARY has not been updated to have the minor version.

[davidhewitt]

Seems likely unintended to me; posted at https://foss.heptapod.net/pypy/pypy/-/issues/3689

[davidhewitt]

Actually I found this minor version is mentioned in https://foss.heptapod.net/pypy/pypy/-/blob/branch/py3.9/pypy/doc/release-v7.3.8.rst

I'll push a commit to add minor version to the lib name on PyPy 3.9

[mattip]

libpypy3.9-c.so is intentional, so that it can be put into /usr/local/lib64 together with other (future) versions like libpypy3.10-c.so reducing the burden on distro packagers