Bug 887535

Summary:	app-text/texlive-core-2021-r2: unable to check floating point endianness for cairo library when LTO is enabled
Product:	Gentoo Linux	Reporter:	Jocelyn Mayer <l_indien>
Component:	Current packages	Assignee:	Gentoo Linux bug wranglers <bug-wranglers>
Status:	RESOLVED DUPLICATE
Severity:	normal	CC:	l_indien
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Attachments:	Output from emerge --info =app-text/texlive-core-2021-r2 Emerge failure build log Patch proposal to texlive-core build system to avoid this issue Patch proposal to the texlive-core ebuild to avoid this issue Emerge build log with patches applied

Description Jocelyn Mayer 2022-12-20 19:38:45 UTC

texlive-core configure process ends with error while trying to determine floating-point types endianness in the cairo library subdirectory if LTO is required:
configure: error: 
Unknown float word ordering. You need to manually preset
ax_cv_c_float_words_bigendian=no (or yes) according to your system.

It's a long standing bug (at least 2 years)...

A proposal patch allow to temporary disable LTO during cairo configuration.

Reproducible: Always

Steps to Reproduce:
1. Make sure '-flto' is set in compilation flags
2. Try to emerge texlive-core

Actual Results:  
configuration of cairo libray fails

Expected Results:  
Build to succeed

Comment 1 Jocelyn Mayer 2022-12-20 19:39:25 UTC

Created attachment 844259 [details]
Output from emerge --info =app-text/texlive-core-2021-r2

Comment 2 Jocelyn Mayer 2022-12-20 19:39:53 UTC

Created attachment 844261 [details]
Emerge  failure build log

Comment 3 Jocelyn Mayer 2022-12-20 19:40:43 UTC

Created attachment 844263 [details, diff]
Patch proposal to texlive-core build system to avoid this issue

Comment 4 Jocelyn Mayer 2022-12-20 19:41:26 UTC

Created attachment 844265 [details, diff]
Patch proposal to the texlive-core ebuild to avoid this issue

Comment 5 Jocelyn Mayer 2022-12-20 19:42:14 UTC

Created attachment 844269 [details]
Emerge build log with patches applied

Comment 6 Sam James archtester

2022-12-20 19:43:07 UTC

commit f496f44c04b285b80c7c987eb12ea8d5eb5722a7
Author: Sam James <sam@gentoo.org>
Date:   Fri Sep 23 02:39:55 2022 +0100

    app-text/texlive-core: backport slibtool patch

    May as well given there's nobody working on the 2022 bump right now.

    This was also one of the few (notable, at least) packages left which didn't
    build w/ slibtool.

    Closes: https://bugs.gentoo.org/775170
    Thanks-to: Michael Orlitzky <mjo@gentoo.org>
    Signed-off-by: Sam James <sam@gentoo.org>

commit b5760171b4f4159669224f6a31652f1c781a517b
Author: Sam James <sam@gentoo.org>
Date:   Wed Sep 21 02:17:13 2022 +0100

    app-text/texlive-core: fix build with LTO using llvm-strings

    Bug in bundled Cairo, already fixed in x11-libs/cairo.

    Bug: https://bugs.gentoo.org/726200
    Closes: https://bugs.gentoo.org/853121
    Signed-off-by: Sam James <sam@gentoo.org>

This is already fixed in ~arch, so just needs stabling.

*** This bug has been marked as a duplicate of bug 853121 ***

Comment 7 Jocelyn Mayer 2022-12-20 19:44:18 UTC

OK, thanks.