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171030 Neil Bothwick wrote: |
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> On Sun, 29 Oct 2017 22:39:31 -0400, Philip Webb wrote: |
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>> 'sane-backends-1.0.27' just stabilised, so I updated to it. |
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>> Previously I had selected 4 items from the list in SANE_BACKENDS, |
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>> which is shown by 'emerge', ie 'epson epson2 plustek plustek_pp'. |
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>> My scanner is an 'Epson V550 Photo'. |
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>> |
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>> Wanting to test which of the 4 items above was needed, I tried each. |
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>> Inadvertently, I tried emerging 'sane-backends' with none included |
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>> & discovered that my scanner still works regardless ! |
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> ISTR that with use_expanded variables like this, |
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> if you don't set the variable then all options are enabled, |
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> so you've just built an un-Gentoolike version that works everywhere. |
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That doesn't matter much beyond compile time, which is not excessive : |
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Xsane will interrogate the scanner & when it's told it's an Epson V550 |
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it will load the appropriate driver & go from there. |
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From the point of view of system maintenance, |
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it's much simpler to let it do that than try to pick out the driver myself. |
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> You could check this by using qlist |
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> to see what has been installed with and without SANE_BACKENDS set. |
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'qlist sane-backends' doesn't show anything like that. |
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Thanks for the explanation. |
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-- |
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========================,,============================================ |
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SUPPORT ___________//___, Philip Webb |
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ELECTRIC /] [] [] [] [] []| Cities Centre, University of Toronto |
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TRANSIT `-O----------O---' purslowatchassdotutorontodotca |
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