libstdc++-7-dev-hppa-cross

GNU Standard C++ Library v3 (development files)

libstdc++-7-dev-powerpc-cross

GNU Standard C++ Library v3 (development files)

libgsound0

small library for playing system sounds

GSound is a small library for playing system sounds. It's designed to be used via GObject Introspection, and is a thin wrapper around the libcanberra C library.

qtwebengine5-doc-html

Qt 5 webengine HTML documentation

Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality.

libgtkmathview0c2a

rendering engine for MathML documents

GtkMathView is a C++ rendering engine for MathML documents. It provides an interactive view that can be used for browsing and editing MathML markup.

libgtkimageview0

image viewer widget for GTK+