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On Fri, Jul 25, 2014 at 03:54:53PM -0400, Ian Stakenvicius wrote: |
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> Hash: SHA256 |
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> |
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> On 25/07/14 03:51 PM, Pacho Ramos wrote: |
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> > El vie, 25-07-2014 a las 20:46 +0100, Ciaran McCreesh escribió: |
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> >> On Fri, 25 Jul 2014 21:44:02 +0200 Luis Ressel <aranea@×××××.de> |
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> >> wrote: |
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> >>> Okay, I didn't think of that. I'm not sure if the blocker deps |
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> >>> or the REQUIRED_USE would be more helpful for Portage, but |
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> >>> generally I think that the REQUIRED_USE error message is quite |
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> >>> hard to understand for unexperienced users -- much more so than |
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> >>> the error generated by a blocker dep. |
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> >> |
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> >> ...and the fix for that is to scrap REQUIRED_USE and use |
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> >> pkg_pretend instead. |
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> >> |
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> > |
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> > Could you give an example to let us see how pkg_pretend could be |
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> > used to achieve the same as REQUIRED_USE? |
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> > |
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> > Thanks |
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> > |
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> > |
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> |
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> pkg_pretend() { |
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> if use heimdal && use mit-krb5; then |
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> eerror "Please set only one of the use following flags:" |
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> eerror "heimdal, mit-krb5" |
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> die "conflicting use flags set" |
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> fi |
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> } |
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I think this could get complicated really quick though. |
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For example, if I have an ebuild with three use flags, |
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flag1/flag2/flag3 with the requirement that one and only one of them |
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must be set, unless bash has an xor operator I don't know about, that |
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is going to need a lot of nesting etc to get right. |
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|
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William |
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