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Alan Mackenzie <acm@×××.de> wrote: |
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|
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>On Mon, Jan 14, 2013 at 05:04:35PM +0530, Yohan Pereira wrote: |
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>> On 14/01/13 at 11:18am, Alan Mackenzie wrote: |
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>> > Hi, Gentoo. |
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> |
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>> > Would somebody please help me with this error message, which arose |
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>from |
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>> > # emerge -puND world |
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>> > : |
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> |
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>> > These are the packages that would be merged, in order: |
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> |
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>> > Calculating dependencies \ |
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> |
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>> > !!! Problem resolving dependencies for media-gfx/sane-backends from |
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>@selected |
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>> > ... done! |
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> |
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>> > !!! The ebuild selected to satisfy "media-gfx/sane-backends" has |
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>unmet requirements. |
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>> > - media-gfx/sane-backends-1.0.23::gentoo USE="ipv6 (multilib) usb |
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>-avahi -doc -gphoto2 -threads -v4l -xinetd" SANE_BACKENDS="abaton |
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>agfafocus apple artec artec_eplus48u as6e avision bh canon canon630u |
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>canon_dr canon_pp cardscan coolscan coolscan2 coolscan3 dc210 dc240 |
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>dc25 dell1600n_net dmc epjitsu epson epson2 fujitsu genesys gt68xx hp |
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>hp3500 hp3900 hp4200 hp5400 hp5590 hpljm1005 hpsj5s hs2p (ibm) kodak |
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>kodakaio kvs1025 kvs20xx kvs40xx leo lexmark ma1509 magicolor |
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>matsushita microtek microtek2 mustek mustek_pp mustek_usb mustek_usb2 |
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>nec net niash p5 pie pixma plustek plustek_pp qcam ricoh rts8891 s9036 |
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>sceptre sharp sm3600 sm3840 snapscan sp15c st400 stv680 tamarack teco1 |
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>teco2 teco3 test u12 umax umax1220u umax_pp xerox_mfp -pnm" |
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> |
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>> > The following REQUIRED_USE flag constraints are unsatisfied: |
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> <============================================= |
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>> > sane_backends_mustek_usb2? ( threads ) sane_backends_kvs40xx? ( |
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>threads ) |
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> |
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>> > (dependency required by "@selected" [set]) |
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>> > (dependency required by "@world" [argument]) |
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> |
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>> > |
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>######################################################################## |
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> |
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>> > I'm mystified as to what a "REQUIRED_USE flag constraint" is. What |
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>is |
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>> > the significance of "sane_backends_mustek_usb2"? It would appear |
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>not to |
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>> > be a use flag. What is the significance of "( threads )"? |
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> |
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>> Bassicly its emerge is telling you that if you have |
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>> sane_backends_mustek_usb2 enabled you also need to enable threads and |
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>> similarly if you have sane_backends_kvs40xx enabled you need to |
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>enable |
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>> threads. So in your case you need to enable threads or disable those |
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>2 |
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>> backends. |
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> |
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>Ah, it looks so obvious now. ;-) Thanks! |
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> |
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>Another question - is there any sensible way of cutting the unnecessary |
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>stuff out of SANE_BACKENDS? That variable is set in the ebuild, and it |
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>doesn't feel the Right Thing to edit the ebuild file. |
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> |
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>> -- |
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> |
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>> - Yohan Pereira |
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|
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Set it in 'make.conf'. |
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|
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-- |
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Joost |
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-- |
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Sent from my Android phone with K-9 Mail. Please excuse my brevity. |
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