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Add a libpython3.dylib to support ABI3 applications #885

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11 changes: 11 additions & 0 deletions recipe/build_base.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -525,6 +525,17 @@ if [[ "$target_platform" == linux-* ]]; then
rm ${PREFIX}/include/uuid.h
fi

if [[ "$target_platform" == osx-* ]]; then
awk -F',' '$1 == "func" || $1 == "data" { print "_" $2 }' Doc/data/stable_abi.dat > stable_abi_exports.txt

$CC -dynamiclib \
-install_name @rpath/libpython3.dylib \
-compatibility_version 3.0 -current_version ${PY_VER}.0 \
-Wl,-reexport_library,${PREFIX}/lib/libpython${VERABI}.dylib \
-Wl,-exported_symbols_list,stable_abi_exports.txt \
-o ${PREFIX}/lib/libpython3.dylib
fi

# Workaround for https://github.com/conda/conda/issues/14053
# Older conda versions install noarch: python packages in wrong places.
# For example python3.1 because older conda assumed python minor version
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1 change: 1 addition & 0 deletions recipe/meta.yaml
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Expand Up @@ -246,6 +246,7 @@ outputs:
- for f in ${CONDA_PREFIX}/lib/python*/_sysconfig*.py; do echo "Checking $f:"; if [[ `rg @[^@]*@ $f` ]]; then echo "FAILED ON $f"; cat $f; exit 1; fi; done # [linux64 or osx]
- test ! -f ${PREFIX}/lib/libpython${PKG_VERSION%.*}.a # [unix]
- test ! -f ${PREFIX}/lib/libpython${PKG_VERSION%.*}.nolto.a # [unix]
- test -f ${PREFIX}/lib/libpython3${SHLIB_EXT} # [unix]

@h-vetinari h-vetinari Jul 28, 2026

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I think we have to restrict this to the non-debug ABI?

Suggested change
- test -f ${PREFIX}/lib/libpython3${SHLIB_EXT} # [unix]
- test -f ${PREFIX}/lib/libpython3${SHLIB_EXT} # [unix and (build_type != "debug")]

{% if freethreading == "yes" %}
- if not exist %PREFIX%\\libs\\python3t.lib exit 1 # [win]
- if not exist %PREFIX%\\libs\\python{{ ver2nd }}t.lib exit 1 # [win]
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