| 1 |
J. Roeleveld wrote: |
| 2 |
> Alan Mackenzie <acm@×××.de> wrote: |
| 3 |
> |
| 4 |
>> On Mon, Jan 14, 2013 at 05:04:35PM +0530, Yohan Pereira wrote: |
| 5 |
>>> On 14/01/13 at 11:18am, Alan Mackenzie wrote: |
| 6 |
>>>> Hi, Gentoo. |
| 7 |
>>>> Would somebody please help me with this error message, which arose |
| 8 |
>> from |
| 9 |
>>>> # emerge -puND world |
| 10 |
>>>> : |
| 11 |
>>>> These are the packages that would be merged, in order: |
| 12 |
>>>> Calculating dependencies \ |
| 13 |
>>>> !!! Problem resolving dependencies for media-gfx/sane-backends from |
| 14 |
>> @selected |
| 15 |
>>>> ... done! |
| 16 |
>>>> !!! The ebuild selected to satisfy "media-gfx/sane-backends" has |
| 17 |
>> unmet requirements. |
| 18 |
>>>> - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb |
| 19 |
>> -avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton |
| 20 |
>> agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u |
| 21 |
>> canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240 |
| 22 |
>> dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp |
| 23 |
>> hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak |
| 24 |
>> kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor |
| 25 |
>> matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2 |
| 26 |
>> nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 |
| 27 |
>> sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 |
| 28 |
>> teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm" |
| 29 |
>> |
| 30 |
>>>> The following REQUIRED_USE flag constraints are unsatisfied: |
| 31 |
>> <============================================= |
| 32 |
>>>> sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? ( |
| 33 |
>> threads ) |
| 34 |
>> |
| 35 |
>>>> (dependency required by "@selected" [set]) |
| 36 |
>>>> (dependency required by "@world" [argument]) |
| 37 |
>> ######################################################################## |
| 38 |
>> |
| 39 |
>>>> I'm mystified as to what a "REQUIRED_USE flag constraint" is. What |
| 40 |
>> is |
| 41 |
>>>> the significance of "sane_backends_mustek_usb2"? It would appear |
| 42 |
>> not to |
| 43 |
>>>> be a use flag. What is the significance of "( threads )"? |
| 44 |
>>> Bassicly its emerge is telling you that if you have |
| 45 |
>>> sane_backends_mustek_usb2 enabled you also need to enable threads and |
| 46 |
>>> similarly if you have sane_backends_kvs40xx enabled you need to |
| 47 |
>> enable |
| 48 |
>>> threads. So in your case you need to enable threads or disable those |
| 49 |
>> 2 |
| 50 |
>>> backends. |
| 51 |
>> Ah, it looks so obvious now. ;-) Thanks! |
| 52 |
>> |
| 53 |
>> Another question - is there any sensible way of cutting the unnecessary |
| 54 |
>> stuff out of SANE_BACKENDS? That variable is set in the ebuild, and it |
| 55 |
>> doesn't feel the Right Thing to edit the ebuild file. |
| 56 |
>> |
| 57 |
>>> -- |
| 58 |
>>> - Yohan Pereira |
| 59 |
> Set it in 'make.conf'. |
| 60 |
> |
| 61 |
> -- |
| 62 |
> Joost |
| 63 |
|
| 64 |
|
| 65 |
If you are like me and not sure what to search for, this is a example: |
| 66 |
|
| 67 |
SANE_BACKENDS="avision" |
| 68 |
|
| 69 |
You would almost certainly need to replace that avision. I found a used |
| 70 |
scanner only to find out why they didn't want it either, it was broke. |
| 71 |
lol If you do a emerge -vp <sane package>, it should show you the |
| 72 |
available options. You could google for them to but emerge could be |
| 73 |
faster. |
| 74 |
|
| 75 |
Hope that helps. |
| 76 |
|
| 77 |
Dale |
| 78 |
|
| 79 |
:-) :-) |
| 80 |
|
| 81 |
-- |
| 82 |
I am only responsible for what I said ... Not for what you understood or how you interpreted my words! |
Archives