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Ticket #10573: Build fails when configured with --disable-amd3dnow

 

 

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Apr 10, 2012, 7:49 AM

Post #1 of 11 (268 views)
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Ticket #10573: Build fails when configured with --disable-amd3dnow

#10573: Build fails when configured with --disable-amd3dnow
-------------------------+--------------------------------------
Reporter: userblues@… | Type: Bug Report - General
Status: new | Priority: minor
Milestone: unknown | Component: MythTV - General
Version: 0.25-fixes | Severity: low
Keywords: | Ticket locked: 0
-------------------------+--------------------------------------
CC libswscale/swscale.o
libswscale/swscale.c: In function 'ff_getSwsFunc':
libswscale/swscale.c:1270:16: error: 'swScale_3DNow' undeclared (first use
in this function)
libswscale/swscale.c:1270:16: note: each undeclared identifier is reported
only once for each function it appears in
make[1]: *** [libswscale/swscale.o] Error 1
make[1]: Leaving directory `/home/saul/work/mythtv/mythtv/external/FFmpeg'

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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Apr 12, 2012, 10:12 PM

Post #2 of 11 (240 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner:
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------
Changes (by beirdo):

* status: new => infoneeded_new


Comment:

What is your exact configure command line, and what CPU are you compiling
for (and on)

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:1>
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Apr 13, 2012, 2:40 PM

Post #3 of 11 (240 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner:
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by userblues@…):

./configure --disable-amd3dnow --disable-audio-oss --disable-distcc
--disable-lirc --disable-hdhomerun --disable-ceton

The CPU is Core 2 Duo Q6600, running Gentoo ~amd64, gcc-4.2.6.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:2>
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Apr 13, 2012, 3:13 PM

Post #4 of 11 (238 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner:
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by beirdo):

OK, I'll take a quick run at it later on, however, why are you disabling
amd3dnow on a processor that doesn't even support it? Seems like a total
waste of time.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:3>
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Apr 13, 2012, 3:16 PM

Post #5 of 11 (239 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------
Changes (by beirdo):

* owner: => beirdo


--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:4>
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Apr 14, 2012, 1:42 PM

Post #6 of 11 (234 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by userblues@…):

Replying to [comment:3 beirdo]:
> OK, I'll take a quick run at it later on, however, why are you disabling
amd3dnow on a processor that doesn't even support it? Seems like a total
waste of time.

Because my CPU does not support it I do not want it built. What's wrong
with that? The whole distro I'm running is created with idea to disable
unused code. ;)

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:5>
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Apr 14, 2012, 2:25 PM

Post #7 of 11 (232 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by beirdo):

Our application is designed to take care of that itself, and does not need
your guidance to know what to compile and what not to. In most cases,
trying to outsmart it will cause exactly this kind of problem. There is
no need for you to disable what will already be disabled. However, I'll
look into making it not crap out when you do the unnecessary.

In the meantime, just don't do it. :)

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:6>
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Apr 14, 2012, 6:06 PM

Post #8 of 11 (234 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by userblues@…):

Please do not get me wrong.
I do appreciate all the hard work you are doing. I really do. I do enjoy
your application, I was just thinking I'm helping by filing this bug. Now,
--disable-amd3dnow configure option exists. If I'm trying to use it why
you call it my guidance? I'm a long time (2003) Gentoo user, for me it
just seems logical to cut the cruft off.
But by all means, if this bug report seems bogus to you feel free to close
it. No worries, I will never file a bug again. :) Sorry if my attempt to
help wasn't any help.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:7>
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Apr 14, 2012, 6:54 PM

Post #9 of 11 (237 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+--------------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: infoneeded_new
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution:
Keywords: | Ticket locked: 0
----------------------------------+--------------------------------

Comment (by beirdo):

The configuration option exists for the case where amd3dnow is actually
enabled when it shouldn't be. It's not there so users have to list a pile
of disables for everything that their processor doesn't actually support.

Anyways, I will be looking to see if we missed a spot to actually disable
code that should obey that flag. Nevertheless, we have many users using
Core2 (myself included) just fine without insisting on overriding the
default build configuration. The defaults are already set to cover 90%+
of users. If the defaults don't work, *then* you experiment with
overrides. I understand this is not the gentoo way, but it has been the
mythtv way for quite some time. Our defaults are actually set to be sane
:)

In short: you shouldn't need that, but it should NOT be borked. :)

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:8>
MythTV <http://code.mythtv.org/trac>
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Apr 17, 2012, 7:20 PM

Post #10 of 11 (226 views)
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Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+----------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: closed
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution: Invalid
Keywords: | Ticket locked: 0
----------------------------------+----------------------------
Changes (by beirdo):

* status: infoneeded_new => closed
* resolution: => Invalid


Comment:

OK, this is due to how ffmpeg builds.

If you *really* want to use --disable-amd3dnow, you also will need
--disable-runtime-cpudetect.

ffmpeg code is smart enough to check the CPU flags and use the best it can
if you allow the runtime CPU detection. However, that code requires you
NOT to disable amd3dnow, mmx or mmx2, but rather let it determine for you.

So take your choice. Add the other flag, or remove both. It should work
either way.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:9>
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Apr 20, 2012, 3:32 PM

Post #11 of 11 (227 views)
Permalink
Re: Ticket #10573: Build fails when configured with --disable-amd3dnow [In reply to]

#10573: Build fails when configured with --disable-amd3dnow
----------------------------------+----------------------------
Reporter: userblues@… | Owner: beirdo
Type: Bug Report - General | Status: closed
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: 0.25-fixes
Severity: low | Resolution: Invalid
Keywords: | Ticket locked: 0
----------------------------------+----------------------------

Comment (by userblues@…):

Thanks :)
Works for me now. With --enable-proc-opt

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10573#comment:10>
MythTV <http://code.mythtv.org/trac>
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