Frequently when updating Python or Emscripten, a handlful of packages
stop working. Because of the way that the CI works, these prevent
other packages from being built or tested. However, packages with
many dependents are currently annoying to disable. This adds a key
to meta.yaml "disable: true" that turns off a package.
I also fixed the "!package" and no-numpy-dependents to be transitive.
We use graphlib to sort the packages topologically, then we traverse
the packages once in build order to locate all the packages which
transitively depend on disabled packages. Then we traverse in reverse
build order to locate all packages that are dependencies of non-disabled
requested packages.
This enables WASM_BIGINT while maintaining (hypothetical) Safari 14 support
by shimming BigInt64Array and BigUint64Array if they are missing. I think the
last time we tried to enable WASM_BIGINT was before #2019 so our chances
are significantly better this time.
This will fix dynamic linking bugs and yields a minor reduction in code size.
This rule is out of date, we intend to ensure that HOST_INSTALL_DIR
consists of cross-build packages which have the right libs and includes
so they can be used.
We use `packaging.tags.sys_tags` to get the list of supported tags
then use `packaging.utils.parse_wheel_filename` to get the set of
tags the current wheel implement then check if one of the wheel's
tags is a supported tag. This is a fully accurate check method and
could also catch things like abi3 wheels that are compatible with
multiple Python versions.
sysconfig.py uses the environment variable `_PYTHON_SYSCONFIGDATA_NAME`
to decide where to look for the sysconfig data file with info about the compile target.
We also need to separately insure that our sysconfig data file is on the path. We
don't want the rest of our target stdlib on the path, so I made an extra sysconfigdata
folder, copied the sysconfig data into it, and put it on the path.
This should improve the tests by quite a lot:
* assertions get formatted automatically
* many fewer doubly / triply nested eval strings
* IDE support for code formatting, syntax highlighting
(the IDEs are pretty confused about other stuff but still...)
Also, messing around with these type conversions tests is a
good way to find lots of bugs, cf my other PRs from 2022-05-27.