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On 09/12/2015 11:40 AM, Paweł Hajdan, Jr. wrote: |
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> On 9/9/15 9:50 PM, Paweł Hajdan, Jr. wrote: |
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>> tl;dr - I could find similar discussions going back even to 2005; |
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>> this seems like a really complex topic that we didn't tackle |
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>> effectively |
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>> |
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>> It seems it'd be helpful to take past discussions into account, |
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>> maybe even create e.g. a wiki page with a summary of various |
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>> solutions and their pros and cons. |
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> |
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> This is my attempt at summarizing the discussions so far: |
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> <https://wiki.gentoo.org/wiki/Toolkit_USE_Flags> |
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> |
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> It's probably incomplete - feel free to extend/change/reformat it. |
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> |
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> I hope it could become a good starting point for a more structured |
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> discussion. |
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> |
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> Paweł |
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> |
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|
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Awesome write-up! |
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I'll go on record and state I think versioned USE flags are probably |
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best-used on a local level in IUSE, while generic USE flags should be |
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used at the global level. For instance a desktop profile meant for KDE |
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could set USE="qt -gtk" and automatically prefer Qt -- whatever |
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version as necessary -- to build GUI applications. Should a particular |
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package require one Qt version or another, it should locally default |
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to what works best, eg IUSE="qt5 +qt4", in the event that the latest |
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version isn't quite good enough. |
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|
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In cases like x11-misc/spacefm, where upstream actively supports both |
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in mostly equal capacity, the latest version should be default but |
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still support the others until maintaining that requires additional |
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patching or other issues. e.g. IUSE="+gtk3 gtk2". |
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I'm not sure where that places me in the table. Versioned global flags |
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are asking for trouble, but putting them in IUSE shouldn't be a |
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problem imo as long as it's made clear *how* they affect the package. |
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Context matters. |
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|
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- -- |
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Daniel Campbell - Gentoo Developer |
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OpenPGP Key: 0x1EA055D6 @ hkp://keys.gnupg.net |
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fpr: AE03 9064 AE00 053C 270C 1DE4 6F7A 9091 1EA0 55D6 |
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