Guillaume Munch wrote: > Because on the other hand with qt4 there is the critical > http://www.lyx.org/trac/ticket/9362. I also noticed that lyx is very > slow with qt4 now, with profiling showing that most of the time is spent > in QTextLine::setLineWidth() below GuiFontMetrics::breakAt(). In fact I > find it more annoying than #9731, so much that I switched to 5.5.1. I > wonder whether LyX 2.2 should not be built with qt >= 5.5.1 on Linux > when possible.
On linux most people do not compile qt themselves, and simply use the preinstalled version, because it is so much easier. Those who do compile qt are experts, I trust them to choose a good version. > For these reasons as well, I am hoping that for 2.3 the community of LyX > developers will choose to focus on qt >= 5.6. +1 However, I also agree with Jean-Marc: As long as keeping LyX compilable with qt 4.8 is close to zero effort we should support 4.8 as in "LyX compiles and does not crash immediately". Georg
