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Fix libmkl_umath_loops.so ImportError under meson-python >= 0.22 #275

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Merged
antonwolfy merged 1 commit into from
Sep 28, 2026
Merged

Fix libmkl_umath_loops.so ImportError under meson-python >= 0.22 #275

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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -17,6 +17,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
* Fixed `absolute` (float32/float64) returning `-NaN` for `+NaN` input on the scalar fallback path (same issue as numpy/numpy@dc478c58b9, gh-31433) [gh-269](https://github.com/IntelPython/mkl_umath/pull/269)
* Fixed an over-decref of the borrowed module dictionary reference on the module initialization error path [gh-264](https://github.com/IntelPython/mkl_umath/pull/264)
* Fixed a leak of the module object when the NumPy C-API import fails during module initialization [gh-263](https://github.com/IntelPython/mkl_umath/pull/263)
* Fixed `ImportError` on Linux/macOS when built with `meson-python` >= 0.22, which strips the `$ORIGIN` RPATH Meson auto-inserts for internal `link_with` dependencies [gh-275](https://github.com/IntelPython/mkl_umath/pull/275)

### Removed
* Removed the `python-gil` constraint from the conda recipes, which pinned `mkl_umath` to GIL-enabled Python 3.14 builds [gh-255](https://github.com/IntelPython/mkl_umath/pull/255)
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8 changes: 8 additions & 0 deletions meson.build
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Expand Up @@ -149,6 +149,13 @@ gen_loops_h = custom_target(
depends: gen_umath_c
)

# RPATHs for the installed targets, relative to each target's location:
# origin -> the package dir holding libmkl_umath_loops.so, which the
# extension modules link against
# origin/../.. \ the environment library dir, where the MKL runtime lives
# origin/../../.. /
# Passed as raw link_args (not install_rpath) so meson-python preserves them on
# every supported version. Empty on Windows, which has no RPATH concept.
rpath_link_args = []
if host_machine.system() != 'windows'
if host_machine.system() == 'darwin'
Expand All @@ -158,6 +165,7 @@ if host_machine.system() != 'windows'
endif

rpath_link_args = [
'-Wl,-rpath,' + origin,
'-Wl,-rpath,' + origin / '../..',
'-Wl,-rpath,' + origin / '../../..',
]
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