919740 – sci-libs/lapack-3.12.0 fails to build with clang-17 and lto enabled

Bug 919740 - sci-libs/lapack-3.12.0 fails to build with clang-17 and lto enabled

Summary: sci-libs/lapack-3.12.0 fails to build with clang-17 and lto enabled

Status:	CONFIRMED

Alias:	None

Product:	Gentoo Linux
Classification:	Unclassified
Component:	Current packages (show other bugs)
Hardware:	All Linux

Importance:	Normal normal with 1 vote (vote)
Assignee:	Gentoo Science Related Packages

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Depends on:
Blocks:	systemwide-clang lto
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Reported:	2023-12-11 23:14 UTC by Chris Pritchard
Modified:	2024-04-04 17:38 UTC (History)
CC List:	1 user (show)

See Also:
Package list:
Runtime testing required:	---

Attachments
build.log (build.log,9.96 KB, text/x-log) 2023-12-11 23:14 UTC, Chris Pritchard	Details
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Description Chris Pritchard 2023-12-11 23:14:13 UTC

lapack fails to build when testing for fortran during the configure phase with bfd as a linker.

Resolved by turning off LTO.

Comment 1 Chris Pritchard 2023-12-11 23:14:57 UTC

Created attachment 878819 [details]
build.log

main.c:(.text.main+0x15): undefined reference to `VerifyFortran' seems to be the main culprit!

Comment 2 Sam James archtester

2023-12-11 23:16:31 UTC

note wrt linker: We have to use bfd here because clang->gfortran (we don't have flang yet). with lld, we get the standard 'undefined reference to main' thing because lld doesn't support gcc lto.