Bug 831473

Summary:	>=sys-devel/mold-1.0.1 needs at least gcc-10.2.0 or clang-12 to compile
Product:	Gentoo Linux	Reporter:	tt_1 <herrtimson>
Component:	Current packages	Assignee:	Sam James <sam>
Status:	RESOLVED FIXED
Severity:	normal	CC:	matthew
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description tt_1 2022-01-19 12:26:23 UTC

molds makefile uses -std=c++20, gcc versions before gcc-10 don't understand this but demand -std=c++2a

I tried to patch the file and go ahead with gcc-9 just for fun, but that makes it only more angry with stash headers missing errors, which seems like a dead giveaway of incomplete c++20 support in the compiler. 

from the readme.md: 

mold is written in C++20, so if you build mold yourself, you need a recent version of a C++ compiler and a C++ standard library. GCC 10.2 or Clang 12.0.0 are recommended.

Comment 1 Larry the Git Cow gentoo-dev

2022-02-22 21:06:38 UTC

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=8a8eb5890e84734a4d152d270750406950f278c7

commit 8a8eb5890e84734a4d152d270750406950f278c7
Author:     Matthew Smith <matthew@gentoo.org>
AuthorDate: 2022-02-22 20:35:50 +0000
Commit:     Matthew Smith <matthew@gentoo.org>
CommitDate: 2022-02-22 21:06:16 +0000

    sys-devel/mold: check compiler version
    
    Acked-by: Sam James <sam@gentoo.org>
    Closes: https://bugs.gentoo.org/831473
    Closes: https://github.com/gentoo/gentoo/pull/24321
    Signed-off-by: Matthew Smith <matthew@gentoo.org>

 sys-devel/mold/mold-1.0.3.ebuild | 11 +++++++++++
 sys-devel/mold/mold-1.1.ebuild   | 11 +++++++++++
 sys-devel/mold/mold-9999.ebuild  | 11 +++++++++++
 3 files changed, 33 insertions(+)