On Thursday 19 February 2015 01:55:01 Kevin Kofler wrote: > Arnaud Vrac wrote: > > Commit fbeeaf2 in qtbase adds QT_NO_MIMETYPE: > > > > "The mime type stuff generates one of the biggest translation units in > > QtCore due to the compressed 1.7MB freedesktop.org.xml resource. With > > QT_NO_MIMETYPE, libQt5Core.so is almost 400Kb smaller (4.8MB->4.4MB gcc > > 4.9 stripped release build)" > > > > It would be nice to be able to find a middle ground between disabling the > > mime database completely and adding 1.7MB of data to Qt. The > > update-mime-database binary from the shared-mime-info package can generate > > a binary file from the XML, which is 100KB large and still allows finding > > the mimetype of any file. The only difference with the XML is that you > > don't have the translated pretty string for the mime type. The binary file > > can also be mmapped and used for every request very efficiently, instead > > of allocating all mime types data in memory. > > This won't help the other platforms, but on GNU/Linux, can't we just use the > system shared-mime-info database?
We might not be able to rely on it being there on all systems, but we could provide a configure switch that lets distributors say "yes, I confirm it's always there, so don't bundle a copy". Similarly, we can provide a switch that says "all locales are UTF-8, so optimise QString::to/fromLocal8Bit". -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel Open Source Technology Center _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development
