Bug 544696

Summary:	media-video/ffmpeg-2.6.1 bad X86_CPU_REQUIRED_USE atom cpu_flags_x86_sse? ( cpu_flags_x86_mmxext )
Product:	Gentoo Linux	Reporter:	Daniel Santos <daniel.santos>
Component:	Current packages	Assignee:	Michał Górny <mgorny>
Status:	RESOLVED INVALID
Severity:	normal	CC:	alex_y_xu, bkohler, media-video, simon.vanderveldt+gentoo
Priority:	Normal
Version:	unspecified
Hardware:	All
OS:	Linux
Whiteboard:
Package list:		Runtime testing required:	---

Description Daniel Santos 2015-03-27 19:28:10 UTC

This restriction is inherently violated on Intel Core 2 P7350 which has sse but not mmxext. It looks like somebody was just being lazy. In other words, having SSE does *not* depend upon having mmxext. If the code has this requirement, then the ebuild needs to be reworked to accommodate processors like the P7350 (even if it means disabling sse support).

Comment 1 Ben Kohler gentoo-dev

2015-03-27 19:36:47 UTC

Disable sse support on your setup, that's the point of the REQUIRED_USE expression.

Comment 2 Alex Xu (Hello71) 2015-03-27 22:39:55 UTC

https://bitbucket.org/mgorny/cpuinfo2cpuflags/issue/3/mmxext-wrong-parameter

Comment 3 Brian Evans (RETIRED) gentoo-dev

2017-08-16 17:52:44 UTC

*** Bug 627884 has been marked as a duplicate of this bug. ***