qtsystems5-dev - 5.0~git20190103.e3332ee+dfsg1-5+b1 main

Qt is a cross-platform C++ application framework. Qt's primary feature
is its rich set of widgets that provide standard GUI functionality.
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This package contains the header development files used for building Qt 5
applications using Qt Systems libraries.
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WARNING: This module is not an official part of Qt 5, but instead a git
snapshot of an ongoing development. The package is very likely to
change in a binary incompatible way, and no guarantees are given.