Bug 618002

Summary:	=media-video/ffmpeg-3.3 can't be built with gold and LTO : could not run lto-wrapper
Product:	Gentoo Linux	Reporter:	Petross404(Petros S) <petross404>
Component:	Current packages	Assignee:	Gentoo Media-video project <media-video>
Status:	RESOLVED OBSOLETE
Severity:	normal	CC:	jstein, paolo.pedroni, sam, tsmksubc
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---
Bug Depends on:
Bug Blocks:	618550
Attachments:	build.log emerge --info

Description Petross404(Petros S) 2017-05-09 18:07:24 UTC

=media-video/ffmpeg-3.3 (this exact version only) can't be built with LTO and ld.gold but compiles fine with ld.bfd. 

Also =media-video/ffmpeg-3.2.4 *can* be compiled with LTO and ld.gold. I haven't tested other versions.

I am using GCC-7.1 and binutils 2.27.

Comment 1 Petross404(Petros S) 2017-05-09 18:11:07 UTC

Created attachment 472154 [details]
build.log

Comment 2 Petross404(Petros S) 2017-05-09 18:11:38 UTC

Created attachment 472156 [details]
emerge --info

Comment 3 Paolo Pedroni 2017-05-16 08:00:59 UTC

As a data point, it works fine with LTO and ld.gold, with gcc-6.3.0 and binutils-2.26.1

Comment 4 Petross404(Petros S) 2017-05-16 08:21:21 UTC

(In reply to Paolo Pedroni from comment #3)
> As a data point, it works fine with LTO and ld.gold, with gcc-6.3.0 and
> binutils-2.26.1

Can you confirm the problem with binutils 2.27 and 2.28 and/or with other GCCs?

Comment 5 Paolo Pedroni 2017-05-16 08:23:41 UTC

(In reply to Petross404(Petros S) from comment #4)
> Can you confirm the problem with binutils 2.27 and 2.28 and/or with other
> GCCs?

I may try later with newer binutils, if I have time. Gcc-7.1.0 is not an option for me ATM.

Comment 6 Steffen Hau 2017-05-16 14:52:35 UTC

It works fine with GCC 7.1.0 and Binutils 2.28.

Comment 7 Cănărău Constantin 2017-05-17 04:53:07 UTC

ffmpeg-3.3.1, binutils-2.28 (gold) and gcc-7.1.0 all good here with lto.
As 3.3.0 failed for me, too, it seems it was resolved in 3.3.1.