When a library path contained the library name it was eagerly matched
libfwupd.so.2 => /build/fwupd-1.0.5/build/libfwupd/libfwupd.so.2 (0x00007ffff7bbd000)
^^^^^^^^^^^^^^^^^^^^^^
libgweather-3.so.15 => /build/libgweather-3.28.0/build/libgweather/libgweather-3.so.15 (0x00007ffff7bae000)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
which lead to a broken shared library path in the generated GIR file.
This patch allows the soname on the left-hand side of the arrow to
be matched to avoid the trap of the right-hand side. A negative
lookahead had to be added to select the store path, since only
the first match is taken into account.
libglib-2.0.so.0 => /nix/store/dqlc8y4phlg1hmdbwkhqfwhnxcac88d1-glib-2.56.0/lib/libglib-2.0.so.0 (0x00007ffff6400000)
This will not fix non-GNU platforms, where the soname is not printed
first, but we cannot do much without structured ldd output.
Closes: https://github.com/NixOS/nixpkgs/issues/34988
Upstream insists on not allowing bindir and other dir options
outside of prefix for some reason:
https://github.com/mesonbuild/meson/issues/2561
We remove the check so multiple outputs can work sanely.
In common distributions, RPATH is only needed for internal libraries so
meson removes everything else. With Nix, the locations of libraries
are not as predictable, therefore we need to keep them in the RPATH. [1]
Previously we have just kept the RPATH produced by the linker, patching
meson not to remove it. This deprived us of potentially replacing it
with install_rpath provided by project so we had to re-add it manually,
and also introduced a vulnerability of keeping build paths in RPATH.
This commit restores the clean-up but modifies it so the items starting
with /nix/store are retained.
This should be relatively safe since the store is immutable, however,
there might be some unwanted retainment of build_rpath [2] if it contains
paths from Nix store.
[1]: https://github.com/NixOS/nixpkgs/issues/31222#issuecomment-365811634
[2]: http://mesonbuild.com/Release-notes-for-0-42-0.html#added-build_rpath-keyword-argument
