Bug 903889

Summary:	app-office/libreoffice fails to build with USE=clang and CFLAGS="-Werror=lto-type-mismatch"
Product:	Gentoo Linux	Reporter:	Rick Farina (Zero_Chaos) <zerochaos>
Component:	Current packages	Assignee:	Gentoo Office Team <office>
Status:	RESOLVED FIXED
Severity:	normal	CC:	sam
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
See Also:	https://github.com/llvm/llvm-project/issues/56487
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	build.log config.log

Description Rick Farina (Zero_Chaos) gentoo-dev

2023-04-05 20:04:44 UTC

I added CFLAGS="-Werror=lto-type-mismatch" a few weeks ago to start helping with all the lto bugs being cut by tinderbox https://www.mail-archive.com/gentoo-dev@lists.gentoo.org/msg95328.html

I suspect I have rebuilt the majority of my system by now, and not hit any other failures related to this CFLAG.  CLANG doesn't support -Werror=lto-type-mismatch which results in an ugly warning:
unknown warning option '-Werror=lto-type-mismatch'; did you mean '-Werror=selector-type-mismatch'? [-Werror,-Wunknown-warning-option]

Unfortunately libreoffice's configure script passes -Werror and causes that warning to be a failure.  Possible solutions include filtering the unneeded/unused cflag when USE=clang, or simply patching configure to remove the quite dangerous -Werror

Comment 1 Rick Farina (Zero_Chaos) gentoo-dev

2023-04-05 20:05:50 UTC

Created attachment 859587 [details]
build.log

Comment 2 Rick Farina (Zero_Chaos) gentoo-dev

2023-04-05 20:06:03 UTC

Created attachment 859588 [details]
config.log

Comment 3 Larry the Git Cow gentoo-dev

2023-04-06 01:03:05 UTC

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

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=efa5d29f7b4c6686f19a181e0a05cd6f790f237b

commit efa5d29f7b4c6686f19a181e0a05cd6f790f237b
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2023-04-06 01:02:20 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2023-04-06 01:02:20 +0000

    app-office/libreoffice: filter out -Wlto-type-mismatch for USE=clang
    
    Clang doesn't implement this yet.
    
    Closes: https://bugs.gentoo.org/903889
    Signed-off-by: Sam James <sam@gentoo.org>

 app-office/libreoffice/libreoffice-7.3.7.2.ebuild  | 3 +++
 app-office/libreoffice/libreoffice-7.4.4.2.ebuild  | 3 +++
 app-office/libreoffice/libreoffice-7.4.6.2.ebuild  | 3 +++
 app-office/libreoffice/libreoffice-7.4.9999.ebuild | 3 +++
 app-office/libreoffice/libreoffice-7.5.2.2.ebuild  | 3 +++
 app-office/libreoffice/libreoffice-7.5.9999.ebuild | 3 +++
 app-office/libreoffice/libreoffice-9999.ebuild     | 3 +++
 7 files changed, 21 insertions(+)