[Bug 227939] devel/boost-python-libs vs ctypes.util.find_library

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=227939

Jan Beich <jbeich at FreeBSD.org> changed:

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--- Comment #6 from Jan Beich <jbeich at FreeBSD.org> ---
(In reply to Kubilay Kocak from comment #3)
> - Fix ports that don't install symlinks to do so

.so.X.Y -> .so symlink is required by ld(1) but why do we need .so.X.Y -> .so.X
or .so.X.Y.Z -> .so.X.Y -> .so.X as well? According to semantic versioning[1]
major version bump is only required for incompatible changes. Boost breaks
API/ABI on each minor release where API incompatibility is minor (i.e., few
breaking changes) but ABI has no guarantees at all. As SONAME already encodes
.so.X.Y.Z there's nothing to fix in Boost.

For one, find_library() works fine on CentOS 7 without .so.X.Y.Z -> .so.X
symlink.

$ ls -1 /usr/lib64/libboost_python*
/usr/lib64/libboost_python-mt.so.1.53.0
/usr/lib64/libboost_python.so.1.53.0

>>> find_library("boost_python")
'libboost_python.so.1.53.0'

[1] https://semver.org/

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