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On Tue, Mar 29, 2005 at 12:15:17PM +0200, Fabian Zeindl wrote: |
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> Hello |
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> |
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> There was a discussion on the gentoo-user-de list about this two |
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> Useflags: gtk and gtk2. Because not everybody is sure what the mean, so |
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> if you have -gtk +gtk2 some think that gtk2 should be installed and soon. |
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There are lots of useflags that don't install anything. |
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Take the new mp3 useflag for example, used by beep-media-player. |
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would you expect it to install a program called 'mp3'? :) |
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> Wouldn't it be better if "gtk" meaned that the newest available gtk |
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> version ist installed (gtk1 or gtk2) and a flag like oldgtk take the |
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> older version gtk1. |
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As soon as gtk3 comes along, you scheme won't work anymore. |
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Some programs use gtk1 only, some gtk2 only, and a few have |
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support for both. As there is not much point in using both |
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of them at runtime, if you use +gtk2, programs that support |
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both will use gtk2. |
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I don't know what happens when you have both +gtk1 and +gtk2 set, |
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but I reckon that still evaluates to using gtk2. You can simply try |
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this out for yourself. The ldd command will tell you which libraries |
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a given binary is linked with (see the ldd manpage). |
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> Another question which occured: Is there a performancedrawback if a |
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> program is compile with gtk1 AND gtk2 build in? Does this happen when |
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> someone installs with +gtk +gtk2? |
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There is no performance penalty. |
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You can savely install both versions. gtk1 and gtk2 are not 'build' into |
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a program, they are shared libraries. What happens is that when a program |
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uses gtk{1,2}, a copy of the gtk{1,2} code is loaded from disk into memory |
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if it is not already in memory. So all programs compiled against the same |
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version of gtk use the very same copy of gtk code at runtime, which of |
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course saves a lot of memory. |
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> -- |
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> Musik ist niemals illegal: www.fairsharing.de |
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My music is not illegal either (creative commons) :) |
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http://binarchy.net/werkstatt |
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-- |
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stefan PGP Key: 0xF59D25F0 |
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-- |
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gentoo-dev@g.o mailing list |
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