29.11.2016, 13:02, "Konrad Rosenbaum" <kon...@silmor.de>: > Hi, > > On Monday 28 November 2016 17:11:19 Konstantin Tokarev wrote: >> Currently, MinGW builds in Coin use -system-zlib configuration. It happens >> because MinGW is shipped with zlib headers and libz.a. However, linking zlib >> to several Qt modules (at least, QtCore, QtGui, QtNetwork, and QtSvg) is >> suboptimal, while with -system-zlib one copy in QtCore is shared between >> all modules. > > Please be aware that there are quite a few Applications out there that use > zlib independently of Qt - e.g. to encode/decode ZIP files. Unfortunately Qt > does not expose its internal zlib headers, nor does it wrap all functionality > of zlib.
qt-zlib builds provide zlib headers in include/QtZlib > So at the very least qt-zlib needs to be linked in a way that allows > an additional version of zlib to be linked. zlib in QtCore is built with prefixed symbols. > > Konrad > > _______________________________________________ > Development mailing list > Development@qt-project.org > http://lists.qt-project.org/mailman/listinfo/development -- Regards, Konstantin _______________________________________________ Development mailing list Development@qt-project.org http://lists.qt-project.org/mailman/listinfo/development