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[3.14] gh-141692: Add a slice-specific lib folder to iOS XCframeworks. (GH-141693) #141733

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Merged
freakboy3742 merged 1 commit into from
Nov 19, 2025
Merged

[3.14] gh-141692: Add a slice-specific lib folder to iOS XCframeworks. (GH-141693) #141733

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gh-141692: Add a slice-specific lib folder to iOS XCframeworks. (GH-1… 
…41693)

Modifies the iOS XCframework to include a lib folder for each slice that
contains a symlinked version of the libPython dynamic library.
(cherry picked from commit 7b0b708)

Co-authored-by: Russell Keith-Magee <[email protected]>
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@freakboy3742 @miss-islington
freakboy3742 authored and miss-islington committed Nov 19, 2025
commit e4e6578c0c19437b4c3d24afd325dad3f58b31ea
14 changes: 14 additions & 0 deletions Apple/__main__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -477,6 +477,12 @@ def lib_platform_files(dirname, names):
or name == "build-details.json"
)
}
elif path.parts[-1] == "lib":
ignored_names = {
name
for name in names
if name.startswith("libpython") and name.endswith(".dylib")
}
else:
ignored_names = set()

Expand Down Expand Up @@ -614,6 +620,12 @@ def create_xcframework(platform: str) -> str:
slice_framework / "Headers/pyconfig.h",
)

print(f" - {slice_name} shared library")
# Create a simlink for the fat library
shared_lib = slice_path / f"lib/libpython{version_tag}.dylib"
shared_lib.parent.mkdir()
shared_lib.symlink_to("../Python.framework/Python")

print(f" - {slice_name} architecture-specific files")
for host_triple, multiarch in slice_parts.items():
print(f" - {multiarch} standard library")
Expand All @@ -625,13 +637,15 @@ def create_xcframework(platform: str) -> str:
framework_path(host_triple, multiarch) / "lib",
package_path / "Python.xcframework/lib",
ignore=lib_platform_files,
symlinks=True,
)
has_common_stdlib = True

shutil.copytree(
framework_path(host_triple, multiarch) / "lib",
slice_path / f"lib-{arch}",
ignore=lib_non_platform_files,
symlinks=True,
)

# Copy the host's pyconfig.h to an architecture-specific name.
Expand Down
3 changes: 2 additions & 1 deletion Apple/testbed/Python.xcframework/build/utils.sh
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Expand Up @@ -46,7 +46,8 @@ install_stdlib() {
rsync -au --delete "$PROJECT_DIR/$PYTHON_XCFRAMEWORK_PATH/lib/" "$CODESIGNING_FOLDER_PATH/python/lib/"
rsync -au "$PROJECT_DIR/$PYTHON_XCFRAMEWORK_PATH/$SLICE_FOLDER/lib-$ARCHS/" "$CODESIGNING_FOLDER_PATH/python/lib/"
else
rsync -au --delete "$PROJECT_DIR/$PYTHON_XCFRAMEWORK_PATH/$SLICE_FOLDER/lib/" "$CODESIGNING_FOLDER_PATH/python/lib/"
# A single-arch framework will have a libpython symlink; that can't be included at runtime
rsync -au --delete "$PROJECT_DIR/$PYTHON_XCFRAMEWORK_PATH/$SLICE_FOLDER/lib/" "$CODESIGNING_FOLDER_PATH/python/lib/" --exclude 'libpython*.dylib'
fi
}

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3 changes: 3 additions & 0 deletions Makefile.pre.in
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Expand Up @@ -3033,6 +3033,9 @@ frameworkinstallunversionedstructure: $(LDLIBRARY)
$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)
sed 's/%VERSION%/'"`$(RUNSHARED) $(PYTHON_FOR_BUILD) -c 'import platform; print(platform.python_version())'`"'/g' < $(RESSRCDIR)/Info.plist > $(DESTDIR)$(PYTHONFRAMEWORKINSTALLDIR)/Info.plist
$(INSTALL_SHARED) $(LDLIBRARY) $(DESTDIR)$(PYTHONFRAMEWORKPREFIX)/$(LDLIBRARY)
$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$(LIBDIR)
$(LN) -fs "../$(LDLIBRARY)" "$(DESTDIR)$(prefix)/lib/libpython$(LDVERSION).dylib"
$(LN) -fs "../$(LDLIBRARY)" "$(DESTDIR)$(prefix)/lib/libpython$(VERSION).dylib"
$(INSTALL) -d -m $(DIRMODE) $(DESTDIR)$(BINDIR)
for file in $(srcdir)/$(RESSRCDIR)/bin/* ; do \
$(INSTALL) -m $(EXEMODE) $$file $(DESTDIR)$(BINDIR); \
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3 changes: 3 additions & 0 deletions Misc/NEWS.d/next/Tools-Demos/2025-11-18-13-55-47.gh-issue-141692.tud9if.rst
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@@ -0,0 +1,3 @@
Each slice of an iOS XCframework now contains a ``lib`` folder that contains
a symlink to the libpython dylib. This allows binary modules to be compiled
for iOS using dynamic libreary linking, rather than Framework linking.
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