Bug 835867 – sys-devel/clang-13.0.1 has a bad default library path

• Product: Gentoo Linux
• Status: RESOLVED FIXED

[Description Jannik Glückert 2022-03-23 21:44:47 UTC]

clang-13.0.1 and 14.0.0 only add the 32bit LLVM & clang library path, but not the 64bit versions to the default search dirs - this results in linking errors when trying to link libLLVM & friends in 64bit mode

clang -print-search-dirs :
programs: =/usr/lib/llvm/13/bin:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin
libraries: =/usr/lib/llvm/13/bin/../../../../lib/clang/13.0.1:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../lib64:/lib/../lib64:/usr/lib/../lib64:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/lib:/usr/lib/llvm/13/bin/../lib:/lib:/usr/lib

Not sure if this was also present in 13.0.0 and earlier

[Comment 1 Mike Lothian 2022-03-23 23:16:53 UTC]

For 14:

clang -print-search-dirs
programs: =/usr/lib/llvm/14/bin:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/bin
libraries: =/usr/lib/llvm/14/bin/../../../../lib/clang/14.0.0:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../lib64:/lib/../lib64:/usr/lib/../lib64:/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.1/../../../../x86_64-pc-linux-gnu/lib:/usr/lib/llvm/14/bin/../lib:/usr/lib/llvm/14/bin/../lib64:/lib:/usr/lib

[Comment 2 Michał Górny 2022-03-24 08:32:22 UTC]

If I read the diff right, the lib64 paths were added for OpenMP runtime, so it probably "improved" by accident.

[Comment 3 Michał Górny 2022-03-24 08:38:35 UTC]

Unfortunately, I can't find where non-suffixed path is being added.  It might be a part of the complex logic for finding GCC install.

[Comment 4 Mike Lothian 2022-03-25 22:34:08 UTC]

I think this is the fix for 14

https://github.com/llvm/llvm-project/commit/afaefb671fe12e7788d3e8de6b6193b935fbf16c

[Comment 5 Sam James 2022-03-25 22:34:38 UTC]

(In reply to Mike Lothian from comment #4)
> I think this is the fix for 14
> 
> https://github.com/llvm/llvm-project/commit/
> afaefb671fe12e7788d3e8de6b6193b935fbf16c

Yep, we've been working with meowray to get it in.

[Comment 6 Larry the Git Cow 2022-03-25 23:21:26 UTC]

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=8b6d9bf8ee0ebf690292f03468667f1d4fa73d5b

commit 8b6d9bf8ee0ebf690292f03468667f1d4fa73d5b
Author:     Michał Górny <[e-mail]>
AuthorDate: 2022-03-25 22:07:22 +0000
Commit:     Michał Górny <[e-mail]>
CommitDate: 2022-03-25 23:21:22 +0000

    sys-devel/clang: Backport wrong library search path fix
    
    Closes: https://bugs.gentoo.org/835867
    Signed-off-by: Michał Górny <[e-mail]>

 sys-devel/clang/Manifest                                        | 2 +-
 sys-devel/clang/{clang-14.0.0.ebuild => clang-14.0.0-r1.ebuild} | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

[Comment 7 Mike Lothian 2022-04-15 11:29:57 UTC]

It looks like this patch wasn't backported to 14.0.1 from main. Would you mind creating a 14.0.1-r1?

[Comment 8 Larry the Git Cow 2022-04-17 15:45:51 UTC]

The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=66a7c34c9374df4e6b44f299cc6876d75c19ef7f

commit 66a7c34c9374df4e6b44f299cc6876d75c19ef7f
Author:     Sam James <[e-mail]>
AuthorDate: 2022-04-17 15:45:12 +0000
Commit:     Sam James <[e-mail]>
CommitDate: 2022-04-17 15:45:40 +0000

    sys-devel/clang: restore library search path patch to 14.0.1
    
    Closes: https://bugs.gentoo.org/835867
    Signed-off-by: Sam James <[e-mail]>

 sys-devel/clang/Manifest                                        | 2 +-
 sys-devel/clang/{clang-14.0.1.ebuild => clang-14.0.1-r1.ebuild} | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)