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On 10/08/2010 01:14 AM, Dale wrote: |
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> Paul Hartman wrote: |
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>> On Thu, Oct 7, 2010 at 2:40 PM, Dale<rdalek1967@×××××.com> wrote: |
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>>> Hi, |
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>>> |
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>>> I have a question. I'm using KDE4, about to switch to 4.5.2. Do I need |
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>>> qt3support anymore? I'm talking about the USE flag qt3support. I run |
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>>> into |
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>>> blocks sometimes and I know KDE3 needed qt3. I'm just curious if I |
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>>> can get |
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>>> rid of this USE flag now. I only have KDE4 installed. No more KDE3 left |
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>>> that I know of. |
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>> Going along with what Alan said. qt3support does not use Qt 3 at all. |
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>> It just puts something like a Qt 3-compatible API into Qt 4, to make |
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>> porting Qt 3 to Qt 4 apps easier. It is largely insignifcant to you |
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>> (since it's not pulling in qt3 packages). |
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>> |
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>> If you have any packages that require this USE flag, their ebuild will |
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>> require this USE flag. So disable it, emerge --deep --newuse world and |
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>> see if it complains. If it does, re-enable and continue life with |
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>> qt3support as if nothing ever happened. :) |
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>> |
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> |
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> Just picking the last message to reply to so this is for everyone who |
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> has chimed in so far. |
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> |
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> I may remove the USE flag and just see what blows up. I may copy over |
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> some binaries so that I can just use -k and not have to wait on the |
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> compiles. I would think if I remove it that something would pitch all |
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> holy hell about it if it has to have it. I'm sure it would be caught at |
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> some point and I would know it then for sure. |
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> |
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> I'm not sure if I have anything on here that must have qt3support. Is |
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> there a way to know for sure? Maybe some obscure command that I am not |
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> familiar with? |
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|
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revdep-rebuild will help. The qt3support USE flag is nothing magical; |
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it simply pulls the "x11-libs/qt-qt3support" as a dependency. This |
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package installs the /usr/lib/qt4/libQt3Support.so.* libraries. So if |
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you have binaries that try to load this lib, revdep-rebuild will find them. |
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|
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And in general, if *any* binary you try to run aborts with something |
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like "libQt3Support.so not found" or similar, then you know it needs |
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qt3support. |
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