Bug 806360

Summary:	sci-libs/ceres-solver-1.14.0 - /.../ld: cannot find -lunwind-x86_64
Product:	Gentoo Linux	Reporter:	Toralf Förster <toralf>
Component:	Current packages	Assignee:	Gentoo Science Related Packages <sci>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	andrewammerlaan
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	emerge-info.txt emerge-history.txt environment etc.portage.tar.bz2 logs.tar.bz2 sci-libs:ceres-solver-1.14.0:20210804-035240.log temp.tar.bz2

Description Toralf Förster gentoo-dev

2021-08-04 08:58:12 UTC

/usr/lib/gcc/x86_64-pc-linux-gnu/11.2.0/../../../../x86_64-pc-linux-gnu/bin/ld: cannot find -lunwind-x86_64
collect2: error: ld returned 1 exit status
ninja: build stopped: subcommand failed.
 * ERROR: sci-libs/ceres-solver-1.14.0::gentoo failed (compile phase):
 *   ninja -v -j3 -l0 failed

  -------------------------------------------------------------------

  This is an unstable amd64 chroot image at a tinderbox (==build bot)
  name: 17.1_desktop-j3_abi32+64_debug-20210729-185806

  -------------------------------------------------------------------

gcc-config -l:
 [1] x86_64-pc-linux-gnu-11.2.0 *
clang version 12.0.1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/lib/llvm/12/bin
/usr/lib/llvm/12
12.0.1
Python 3.9.6
Available Ruby profiles:
  (none found)
Available Rust versions:
  [1]   rust-bin-1.53.0 *
The following VMs are available for generation-2:
1)	JamVM JDK 2.0.0 [jamvm]
*)	AdoptOpenJDK 8.292_p10 [openjdk-bin-8]
Available Java Virtual Machines:
  [1]   jamvm 
  [2]   openjdk-bin-8  system-vm

The Glorious Glasgow Haskell Compilation System, version 8.10.4

  HEAD of ::gentoo
commit e127241ec8ecb9ba3551672aac2fb526ca10fbd2
Author: Repository mirror & CI <repomirrorci@gentoo.org>
Date:   Wed Aug 4 03:06:42 2021 +0000

    2021-08-04 03:06:40 UTC

emerge -qpvO sci-libs/ceres-solver
[ebuild  N    ] sci-libs/ceres-solver-1.14.0  USE="openmp schur -cxsparse -doc -examples -gflags -lapack -sparse -test" ABI_X86="32 (64) (-x32)"

Comment 1 Toralf Förster gentoo-dev

2021-08-04 08:58:13 UTC

Created attachment 730044 [details]
emerge-info.txt

Comment 2 Toralf Förster gentoo-dev

2021-08-04 08:58:15 UTC

Created attachment 730046 [details]
emerge-history.txt

Comment 3 Toralf Förster gentoo-dev

2021-08-04 08:58:16 UTC

Created attachment 730048 [details]
environment

Comment 4 Toralf Förster gentoo-dev

2021-08-04 08:58:17 UTC

Created attachment 730050 [details]
etc.portage.tar.bz2

Comment 5 Toralf Förster gentoo-dev

2021-08-04 08:58:18 UTC

Created attachment 730052 [details]
logs.tar.bz2

Comment 6 Toralf Förster gentoo-dev

2021-08-04 08:58:20 UTC

Created attachment 730054 [details]
sci-libs:ceres-solver-1.14.0:20210804-035240.log

Comment 7 Toralf Förster gentoo-dev

2021-08-04 08:58:21 UTC

Created attachment 730056 [details]
temp.tar.bz2

Comment 8 Arfrever Frehtes Taifersar Arahesis 2021-08-04 17:40:12 UTC

This error occurs in abi_x86_32 part of multilib (abi_x86_32 + abi_x86_64) build.

Build system incorrectly calculates name of libunwind platform library.

Name of libunwind platform library is platform-specific:
On x86_32: libunwind-x86.so
On x86_64: libunwind-x86_64.so

libunwind platform library is also rarely used, and maintainers should check if it is actually needed here (by checking if there are undefined references if it is disabled). Maybe dropping of linking would suffice.