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From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug libstdc++/99453] libstdc++*-gdb.py installation depends on
 library naming
Date: Mon, 09 May 2022 16:19:40 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D99453

--- Comment #21 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Jonathan Wakely from comment #0)
> This will use the last matching file for the libstdc++* glob. That works
> fine for ELF targets where the matching names are:
>=20
> libstdc++.a
> libstdc++.so
> libstdc++.so.6
> libstdc++.so.6.0.29
>=20
> But not for MacOS with:
>=20
> libstdc++.6.dylib
> libstdc++.a
>=20
> Or mingw with:
>=20
> libstdc++-6.dll
> libstdc++.dll.a
>=20
> We need a better way to find the dynamic library, whether that's the
> so.6.0.29 or the .dylib or the .dll, that doesn't depend on the shell's
> alphabetic sort for the pattern. As the comment says, libtool doesn't give
> us that info, but we can still do better.

Hmm, this isn't fixed for mingw because the libtool libstdc++.la file has:

# The name that we can dlopen(3).
dlname=3D'libstdc++-6.dll'

# Names of this library.
library_names=3D'libstdc++.dll.a'

# The name of the static archive.
old_library=3D'libstdc++.a'


This means we still choose libstdc++.dll.a-gdb.py as the hook name, which is
still wrong. Yay for libtool.=