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I installed Ubuntu 12.04 on my laptop today, and when I was updating it using the Update Manager, I saw it downloading qt and gtk libraries. Does that mean I can use them directly? Or will I need to download them from their respective sites and build them?

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There's no need to build anything. Maybe those libraries were pulled because they're dependencies of some other package you installed through Update Manager.

So i wouldn't worry about that, chances are those libraries are already installed on your system.

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I didnt add any thing to the update manager, as soon as it finished installing the OS, I entered Update Manager. Another question, how can I use these libraries, like where are they located? – khchehab Aug 25 '12 at 15:53
Depending on the library they could be in /lib or /usr/lib/, if you want to know the location of files installed by a package just try sudo dpkg -L packagename – LnxSlck Aug 25 '12 at 16:45
okay, thanks alot LnxSlck – khchehab Aug 25 '12 at 17:25
I want to include the wx library as global variable in Code::Blocks, but I need the base location of the wx library, I used the command you gave me above, but it gave me the list of files owned by the package. Is there a way to get the exact location of the base wx library? – khchehab Aug 25 '12 at 18:29
You can try sudo mlocate wx – LnxSlck Aug 25 '12 at 18:42

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