Bug 786201

Summary:	sys-devel/llvm-10.0.1 fails to compile
Product:	Gentoo Linux	Reporter:	Agostino Sarubbo <ago>
Component:	Current packages	Assignee:	LLVM support project <llvm>
Status:	RESOLVED FIXED
Severity:	normal	CC:	gyakovlev, mgorny
Priority:	Normal	Keywords:	PATCH
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://bugs.gentoo.org/show_bug.cgi?id=787569
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	732706
Attachments:	build.log

Description Agostino Sarubbo gentoo-dev

2021-04-28 06:27:19 UTC

https://blogs.gentoo.org/ago/2020/07/04/gentoo-tinderbox/

Issue: sys-devel/llvm-10.0.1 fails to compile.
Discovered on: amd64 (internal ref: ci)

NOTE:
This machine uses GCC-11

Comment 1 Agostino Sarubbo gentoo-dev

2021-04-28 06:27:23 UTC

Created attachment 702753 [details]
build.log

build log and emerge --info

Comment 2 Agostino Sarubbo gentoo-dev

2021-04-28 06:27:24 UTC

Possible context of error(s):

-- Could NOT find Z3: Found unsuitable version "0.0.0", but required is at least "4.7.1" (found Z3_LIBRARIES-NOTFOUND)
-- Could NOT find OCaml (missing: OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- Could NOT find OCaml (missing: OCAMLFIND OCAML_VERSION OCAML_STDLIB_PATH) 
-- Could NOT find Python module pygments
-- Could NOT find Python module pygments.lexers.c_cpp
-- Could NOT find Python module yaml
/var/tmp/portage/sys-devel/llvm-10.0.1/work/llvm/utils/benchmark/src/benchmark_register.h:17:30: error: ‘numeric_limits’ is not a member of ‘std’

Comment 3 Michał Górny archtester

2021-04-28 07:38:55 UTC

I'm not going to maintain LLVM 10 beyond cherry-picking patches somebody else finds.

Comment 4 Stephan Hartmann (RETIRED) gentoo-dev

2021-04-28 09:20:54 UTC

(In reply to Michał Górny from comment #3)
> I'm not going to maintain LLVM 10 beyond cherry-picking patches somebody
> else finds.

https://github.com/llvm/llvm-project/commit/b498303066a63a203d24f739b2d2e0e56dca70d1

Comment 5 Martin Sekera 2021-04-28 11:29:06 UTC

sys-devel/llvm-10.0.1 with the one-line patch linked above builds successfully with gcc-11.1.0 on amd64

Comment 6 Larry the Git Cow gentoo-dev

2021-04-28 13:02:25 UTC

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=f8dd39b95a9f8c949c2f1fe9c4ee0e284625afa1

commit f8dd39b95a9f8c949c2f1fe9c4ee0e284625afa1
Author:     Michał Górny <mgorny@gentoo.org>
AuthorDate: 2021-04-28 12:59:21 +0000
Commit:     Michał Górny <mgorny@gentoo.org>
CommitDate: 2021-04-28 13:02:21 +0000

    sys-devel/llvm: Backport gcc-11 build fix
    
    Thanks to Stephan Hartmann for pointing out the relevant commit.
    
    Closes: https://bugs.gentoo.org/786201
    Signed-off-by: Michał Górny <mgorny@gentoo.org>

 sys-devel/llvm/Manifest           | 2 +-
 sys-devel/llvm/llvm-10.0.1.ebuild | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)