Skip to content

gh-104612: Fix libpython3.so stable ABI on Linux using patchelf #144136

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
beeender wants to merge 2 commits into
base: main
Choose a base branch
from
Open

gh-104612: Fix libpython3.so stable ABI on Linux using patchelf #144136

Show file tree
Hide file tree
Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
88a7e4f
gh-104612: Fix libpython3.so stable ABI on Linux using patchelf
beeender Jan 22, 2026
1b9d6b5
📜🤖 Added by blurb_it.
blurb-it[bot] Jan 22, 2026
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
9 changes: 8 additions & 1 deletion Makefile.pre.in
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -67,6 +67,9 @@ SHELL= /bin/sh -e
# Use this to make a link between python$(VERSION) and python in $(BINDIR)
LN= @LN@

# patchelf is used on Linux to set SONAME of libpython3.so for stable ABI
PATCHELF= @PATCHELF@

# Portable install script (configure doesn't always guess right)
INSTALL= @INSTALL@
INSTALL_PROGRAM=@INSTALL_PROGRAM@
Expand Down Expand Up @@ -1026,7 +1029,11 @@ libpython$(LDVERSION).so: $(LIBRARY_OBJS) $(DTRACE_OBJS)
fi

libpython3.so: libpython$(LDVERSION).so
$(BLDSHARED) $(NO_AS_NEEDED) -o $@ -Wl,-h$@ $^
if test -n "$(PATCHELF)"; then \
cp $^ $@ && $(PATCHELF) --set-soname $@ $@; \
else \
$(BLDSHARED) $(NO_AS_NEEDED) -o $@ -Wl,-h$@ $^; \
fi

libpython$(LDVERSION).dylib: $(LIBRARY_OBJS)
$(CC) -dynamiclib $(PY_CORE_LDFLAGS) -undefined dynamic_lookup -Wl,-install_name,$(prefix)/lib/libpython$(LDVERSION).dylib -Wl,-compatibility_version,$(VERSION) -Wl,-current_version,$(VERSION) -o $@ $(LIBRARY_OBJS) $(DTRACE_OBJS) $(SHLIBS) $(LIBC) $(LIBM); \
Expand Down
1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Build/2026-01-22-09-03-56.gh-issue-104612.z6FSDN.rst
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -0,0 +1 @@
Fix libpython3.so stable ABI on Linux
54 changes: 54 additions & 0 deletions configure
View file
Open in desktop

Some generated files are not rendered by default. Learn more about how customized files appear on GitHub.

11 changes: 11 additions & 0 deletions configure.ac
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -1719,6 +1719,17 @@ if test -z "$LN" ; then
esac
fi

# patchelf is required on Linux to set the SONAME of libpython3.so for stable ABI support
AC_SUBST([PATCHELF])
case $ac_sys_system in
Linux*)
AC_CHECK_PROG([PATCHELF], [patchelf], [patchelf], [])
if test -z "$PATCHELF"; then
AC_MSG_ERROR([patchelf is required on Linux for stable ABI support. Please install patchelf.])
fi
;;
esac

# For calculating the .so ABI tag.
AC_SUBST([ABIFLAGS])
AC_SUBST([ABI_THREAD])
Expand Down
Loading