J. Roeleveld wrote: > Alan Mackenzie <[email protected]> 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!
