Quote:
Originally Posted by Terisa de morgan
@rcentros, I think you're missing a point about HarryT's answer and your question. HarryT says that Qt5 is installed with calibre 2.X and that's true. But you were asking about installing Qt5 in Windows over an older installation, so adding to it out of calbre environment. Those are two totally different situations.
Indeed, if you get calibre 2.0, you can install Qt5 over Windows XP, but you could find problems (in the same way you could find problems in LInux if you install a new package over an older distro), and as it looked like the problems were common, the installation was restricted inside calibre.
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That's the way Linux works. You can have different versions of the same development libraries, so long as you keep them separate directories and point to the right directory when you use them (which, apparently, Calibre handles for you). I'm not sure what libraries I download when I do a Calibre install (it's automatic). I always just download and install the newest version -- directly from Calibre --- over my older version. I've yet to have a problem.