Mercurial > hg
view rust/hgcli/.cargo/config @ 49151:1b6e381521c5 stable
doc: use an absolute path in sys.path to work around a python DLL loading bug
This bug[1] was causing the zstd entry under "Available Compression Engines" to
be omitted from the documentation for some versions of python3. I could
upgrade, but past upgrades have broken venvs and clobbered installed packages.
It's a trivial workaround, so there's no sense in leaving this subtle issue. It
was flushed out by changing the module policy here from 'allow' to 'c', and
seeing this error:
ImportError: DLL load failed while importing parsers: The parameter is incorrect.
[1] https://github.com/python/cpython/issues/87271
Differential Revision: https://phab.mercurial-scm.org/D12599
author | Matt Harbison <matt_harbison@yahoo.com> |
---|---|
date | Mon, 02 May 2022 22:04:59 -0400 |
parents | af739894a4c1 |
children |
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# By default Rust will not export dynamic symbols from built executables. # Python symbols need to be exported from executables in order for that # executable to load Python extension modules, which are shared libraries. # Otherwise, the extension module / shared library is unable to resolve # Python symbols. This file contains target-specific configuration # overrides to export dynamic symbols from executables. # # Ideally we would achieve this functionality via the build.rs build # script. But custom compiler flags via build scripts apparently only # support limited options. [target.x86_64-unknown-linux-gnu] rustflags = ["-C", "link-args=-Wl,-export-dynamic"]