[gentoo-user] Too terse error message from emerge.

[gentoo-user] Too terse error message from emerge.

[Alan Mackenzie]

Hi, Gentoo.

Would somebody please help me with this error message, which arose from
# emerge -puND world
:

These are the packages that would be merged, in order:

Calculating dependencies \

!!! Problem resolving dependencies for media-gfx/sane-backends from @selected
... done!

!!! The ebuild selected to satisfy "media-gfx/sane-backends" has unmet requirements.
- media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb -avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240 dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2 nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm"

  The following REQUIRED_USE flag constraints are unsatisfied:                          <=============================================
    sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? ( threads )

(dependency required by "@selected" [set])
(dependency required by "@world" [argument])

########################################################################

I'm mystified as to what a "REQUIRED_USE flag constraint" is.  What is
the significance of "sane_backends_mustek_usb2"?  It would appear not to
be a use flag.  What is the significance of "( threads )"?

Any other helpful comments appreciated.

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [gentoo-user] Too terse error message from emerge.

[Yohan Pereira]

On 14/01/13 at 11:18am, Alan Mackenzie wrote:
> Hi, Gentoo.
> 
> Would somebody please help me with this error message, which arose from
> # emerge -puND world
> :
> 
> These are the packages that would be merged, in order:
> 
> Calculating dependencies \
> 
> !!! Problem resolving dependencies for media-gfx/sane-backends from @selected
> ... done!
> 
> !!! The ebuild selected to satisfy "media-gfx/sane-backends" has unmet requirements.
> - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb -avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240 dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2 nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm"
> 
>   The following REQUIRED_USE flag constraints are unsatisfied:                          <=============================================
>     sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? ( threads )
> 
> (dependency required by "@selected" [set])
> (dependency required by "@world" [argument])
> 
> ########################################################################
> 
> I'm mystified as to what a "REQUIRED_USE flag constraint" is.  What is
> the significance of "sane_backends_mustek_usb2"?  It would appear not to
> be a use flag.  What is the significance of "( threads )"?

Bassicly its emerge is telling you that if you have
sane_backends_mustek_usb2 enabled you also need to enable threads and
similarly if you have sane_backends_kvs40xx enabled you need to enable
threads. So in your case you need to enable threads or disable those 2
backends.

-- 

- Yohan Pereira

The difference between a Miracle and a Fact is exactly the difference
between a mermaid and a seal.
                -- Mark Twain

Re: [gentoo-user] Too terse error message from emerge.

[Alan Mackenzie]

On Mon, Jan 14, 2013 at 05:04:35PM +0530, Yohan Pereira wrote:
> On 14/01/13 at 11:18am, Alan Mackenzie wrote:
> > Hi, Gentoo.

> > Would somebody please help me with this error message, which arose from
> > # emerge -puND world
> > :

> > These are the packages that would be merged, in order:

> > Calculating dependencies \

> > !!! Problem resolving dependencies for media-gfx/sane-backends from @selected
> > ... done!

> > !!! The ebuild selected to satisfy "media-gfx/sane-backends" has unmet requirements.
> > - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb -avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240 dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2 nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm"

> >   The following REQUIRED_USE flag constraints are unsatisfied:                          <=============================================
> >     sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? ( threads )

> > (dependency required by "@selected" [set])
> > (dependency required by "@world" [argument])

> > ########################################################################

> > I'm mystified as to what a "REQUIRED_USE flag constraint" is.  What is
> > the significance of "sane_backends_mustek_usb2"?  It would appear not to
> > be a use flag.  What is the significance of "( threads )"?

> Bassicly its emerge is telling you that if you have
> sane_backends_mustek_usb2 enabled you also need to enable threads and
> similarly if you have sane_backends_kvs40xx enabled you need to enable
> threads. So in your case you need to enable threads or disable those 2
> backends.

Ah, it looks so obvious now.  ;-)  Thanks!

Another question - is there any sensible way of cutting the unnecessary
stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
doesn't feel the Right Thing to edit the ebuild file.

> -- 

> - Yohan Pereira

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [gentoo-user] Too terse error message from emerge.

[J. Roeleveld]

Alan Mackenzie <acm@muc.de> wrote:

>On Mon, Jan 14, 2013 at 05:04:35PM +0530, Yohan Pereira wrote:
>> On 14/01/13 at 11:18am, Alan Mackenzie wrote:
>> > Hi, Gentoo.
>
>> > Would somebody please help me with this error message, which arose
>from
>> > # emerge -puND world
>> > :
>
>> > These are the packages that would be merged, in order:
>
>> > Calculating dependencies \
>
>> > !!! Problem resolving dependencies for media-gfx/sane-backends from
>@selected
>> > ... done!
>
>> > !!! The ebuild selected to satisfy "media-gfx/sane-backends" has
>unmet requirements.
>> > - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb
>-avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton
>agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u
>canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240
>dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp
>hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak
>kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor
>matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2
>nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036
>sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1
>teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm"
>
>> >   The following REQUIRED_USE flag constraints are unsatisfied:     
>                    <=============================================
>> >     sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? (
>threads )
>
>> > (dependency required by "@selected" [set])
>> > (dependency required by "@world" [argument])
>
>> >
>########################################################################
>
>> > I'm mystified as to what a "REQUIRED_USE flag constraint" is.  What
>is
>> > the significance of "sane_backends_mustek_usb2"?  It would appear
>not to
>> > be a use flag.  What is the significance of "( threads )"?
>
>> Bassicly its emerge is telling you that if you have
>> sane_backends_mustek_usb2 enabled you also need to enable threads and
>> similarly if you have sane_backends_kvs40xx enabled you need to
>enable
>> threads. So in your case you need to enable threads or disable those
>2
>> backends.
>
>Ah, it looks so obvious now.  ;-)  Thanks!
>
>Another question - is there any sensible way of cutting the unnecessary
>stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
>doesn't feel the Right Thing to edit the ebuild file.
>
>> -- 
>
>> - Yohan Pereira

Set it in 'make.conf'.

--
Joost
-- 
Sent from my Android phone with K-9 Mail. Please excuse my brevity.

Re: [gentoo-user] Too terse error message from emerge.

[Dale]

J. Roeleveld wrote:
> Alan Mackenzie <acm@muc.de> wrote:
>
>> On Mon, Jan 14, 2013 at 05:04:35PM +0530, Yohan Pereira wrote:
>>> On 14/01/13 at 11:18am, Alan Mackenzie wrote:
>>>> Hi, Gentoo.
>>>> Would somebody please help me with this error message, which arose
>> from
>>>> # emerge -puND world
>>>> :
>>>> These are the packages that would be merged, in order:
>>>> Calculating dependencies \
>>>> !!! Problem resolving dependencies for media-gfx/sane-backends from
>> @selected
>>>> ... done!
>>>> !!! The ebuild selected to satisfy "media-gfx/sane-backends" has
>> unmet requirements.
>>>> - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb
>> -avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton
>> agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u
>> canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240
>> dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp
>> hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak
>> kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor
>> matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2
>> nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036
>> sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1
>> teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm"
>>
>>>>   The following REQUIRED_USE flag constraints are unsatisfied:     
>>                    <=============================================
>>>>     sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? (
>> threads )
>>
>>>> (dependency required by "@selected" [set])
>>>> (dependency required by "@world" [argument])
>> ########################################################################
>>
>>>> I'm mystified as to what a "REQUIRED_USE flag constraint" is.  What
>> is
>>>> the significance of "sane_backends_mustek_usb2"?  It would appear
>> not to
>>>> be a use flag.  What is the significance of "( threads )"?
>>> Bassicly its emerge is telling you that if you have
>>> sane_backends_mustek_usb2 enabled you also need to enable threads and
>>> similarly if you have sane_backends_kvs40xx enabled you need to
>> enable
>>> threads. So in your case you need to enable threads or disable those
>> 2
>>> backends.
>> Ah, it looks so obvious now.  ;-)  Thanks!
>>
>> Another question - is there any sensible way of cutting the unnecessary
>> stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
>> doesn't feel the Right Thing to edit the ebuild file.
>>
>>> -- 
>>> - Yohan Pereira
> Set it in 'make.conf'.
>
> --
> Joost


If you are like me and not sure what to search for, this is a example:

SANE_BACKENDS="avision"

You would almost certainly need to replace that avision.  I found a used
scanner only to find out why they didn't want it either, it was broke. 
lol  If you do a emerge -vp <sane package>, it should show you the
available options.  You could google for them to but emerge could be
faster.

Hope that helps.

Dale

:-)  :-) 

-- 
I am only responsible for what I said ... Not for what you understood or how you interpreted my words!

Re: [gentoo-user] Too terse error message from emerge.

[Alan Mackenzie]

Hello, Dale.

On Mon, Jan 14, 2013 at 06:33:47AM -0600, Dale wrote:
> J. Roeleveld wrote:
> > Alan Mackenzie <acm@muc.de> wrote:

> >> Another question - is there any sensible way of cutting the unnecessary
> >> stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
> >> doesn't feel the Right Thing to edit the ebuild file.

> >>> -- 
> >>> - Yohan Pereira
> > Set it in 'make.conf'.

> > --
> > Joost


> If you are like me and not sure what to search for, this is a example:

> SANE_BACKENDS="avision"

Thanks.  For me it's SANE_BACKENDS="plustek".  Not sure why, since it's a
Canon scanner.  Got that info from running sane and opening its info
window.

> You would almost certainly need to replace that avision.  I found a used
> scanner only to find out why they didn't want it either, it was broke. 
> lol

I got mine given me by somebody who'd just upgraded to Windows 7; it
didn't work in W7.  Haven't you got to love Microsoft? ;-)

> If you do a emerge -vp <sane package>, it should show you the available
> options.  You could google for them to but emerge could be faster.

> Hope that helps.

> Dale

> :-)  :-) 

-- 
Alan Mackenzie (Nuremberg, Germany).

Re: [gentoo-user] Too terse error message from emerge.

[Bruce Hill]

On Mon, Jan 14, 2013 at 04:54:47PM +0000, Alan Mackenzie wrote:
> Hello, Dale.
> 
> On Mon, Jan 14, 2013 at 06:33:47AM -0600, Dale wrote:
> > J. Roeleveld wrote:
> > > Alan Mackenzie <acm@muc.de> wrote:
> 
> > >> Another question - is there any sensible way of cutting the unnecessary
> > >> stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
> > >> doesn't feel the Right Thing to edit the ebuild file.
> 
> > >>> -- 
> > >>> - Yohan Pereira
> > > Set it in 'make.conf'.
> 
> > > --
> > > Joost
> 
> 
> > If you are like me and not sure what to search for, this is a example:
> 
> > SANE_BACKENDS="avision"
> 
> Thanks.  For me it's SANE_BACKENDS="plustek".  Not sure why, since it's a
> Canon scanner.  Got that info from running sane and opening its info
> window.
> 
> > You would almost certainly need to replace that avision.  I found a used
> > scanner only to find out why they didn't want it either, it was broke. 
> > lol
> 
> I got mine given me by somebody who'd just upgraded to Windows 7; it
> didn't work in W7.  Haven't you got to love Microsoft? ;-)
> 
> > If you do a emerge -vp <sane package>, it should show you the available
> > options.  You could google for them to but emerge could be faster.
> 
> > Hope that helps.
> 
> > Dale
> 
> > :-)  :-) 
> 
> -- 
> Alan Mackenzie (Nuremberg, Germany).

Oh, I feel your pain, and won't go back there.

When we moved back to the States and opened the comp shop, we bought a
HP Officejet Pro 8500 A910. It does everything (including scanning) from an
embedded webserver. Just type it's IP in your browser and you can do whatever
you want with a multifunction printer. Scanning has never been easier, the
quality has never been even close, and it's so extremely nice to have a
printer that works ... every function.

We've always used HP printers with Linux because they supply drivers; but now,
more than ever, I wouldn't consider anything else.

Just my 2c...
-- 
Happy Penguin Computers               >')
126 Fenco Drive                       ( \
Tupelo, MS 38801                       ^^
support@happypenguincomputers.com
662-269-2706 662-205-6424
http://happypenguincomputers.com/

Don't top-post: http://en.wikipedia.org/wiki/Top_post#Top-posting

Re: [gentoo-user] Too terse error message from emerge.

[Dale]

Alan Mackenzie wrote:
> Hello, Dale.
>
> On Mon, Jan 14, 2013 at 06:33:47AM -0600, Dale wrote:
>
>> You would almost certainly need to replace that avision.  I found a used
>> scanner only to find out why they didn't want it either, it was broke. 
>> lol
> I got mine given me by somebody who'd just upgraded to Windows 7; it
> didn't work in W7.  Haven't you got to love Microsoft? ;-)
>
>

Well, I wouldn't know about Microsoft.  I have never actually bought it
and only run across it on someone else's system, which isn't very often
anymore.  My brother is now converted and he was the one I worked on
most.  Now, I don't work on it, I just update it.  I'll tinker on one to
try to fix things but I'm no winders expert. 

Glad you go it going tho.  I got to get me a scanner so I can scan in
some REALLY old pictures.  I got some so old, they are not only black
and white but they are on brittle paper too.

Dale

:-)  :-) 

-- 
I am only responsible for what I said ... Not for what you understood or how you interpreted my words!

Re: [gentoo-user] Too terse error message from emerge.

[Yohan Pereira]

On 14/01/13 at 12:10pm, Alan Mackenzie wrote:
> Another question - is there any sensible way of cutting the unnecessary
> stuff out of SANE_BACKENDS?  That variable is set in the ebuild, and it
> doesn't feel the Right Thing to edit the ebuild file.

you can override that variable in your make.conf.

eg.
SANE_BACKENDS="hp"
-- 

- Yohan Pereira

The difference between a Miracle and a Fact is exactly the difference
between a mermaid and a seal.
                -- Mark Twain