安装qt-opensource-linux-x64-5.7.0，之后怎么配置

切换到root用户，敲命令file qt-opensource-linux-x86-5.3.1.run查看是否是linux shell的二级制文件。如果是的话，chmod +x qt-opensource-linux-x86-5.3.1.run给文件加可执行权限。 最后./qt-opensource-linux-x86-5.3.1.run运行，看提示什么

建议用 5.5.1 ，功能差不了太多，要不就得自己在32位系统下从源码编译Qt了。

http://download.qt.io/archive/qt/5.5/5.5.1/

先确认必须在32位系统下使用的必要性。再看看5.6的新功能是否有必须用到的。

New Features in Qt 5.6

New Features

Qt Core

Reduced memory usage of dynamic properties

Allow logging directly to syslog on Linux systems

Added QStorageInfo::blockSize()

new QVersionNumber class

Added key_iterator to QHash and QMap

Added const_iterator QByteArray

Added reverse iterator support to all sequential containers

added QDir::listSeparator()

Lots of performance optimisations in QString

Qt Network

Added QHostAddress::isMulticast()

Support HTTP redirection in QNetworkAccessManager

Qt GUI

Improved cross-platform OpenGL ES 3.0 and 3.1 support to help the development of mobile/embedded apps utilizing GLES3 features.

Improved cross-platform high-dpi support.

Raster engine support for rendering internally with 16bits-per-color.

QImageReader now exports gamma values and other meta data for some image formats

Qt Widgets

Allow programmatic resizing of dock widgets

Allow dropping dock widgets into floating docks

Allow the user to re-arrange tabified docks

Allow horizontal scrolling using a mouse wheel in QListView

QOpenGLWidget and QQuickWidget are now supported on WinRT

Qt Testlib

More stable input event handling

Qt Multimedia

New Playlist QML type.

New audio role API for the media player (C++ and QML)

Support for camera focus and video probe on WinRT

New functions in QML AudioEngine to support dynamic object creation

Qt WebEngine

Based on Chromium 45

Support for pepper plugins including Flash

Support for unbundling and linking with system libraries on Linux

Support for following global Qt proxy settings.

More WebActions from QtWebKit and WebAction API in QML.

New QtWebEngineCore module for shared low-level API

New core API for custom URL schemes

New core API for intercepting and blocking network requests

New core API for tracking or blocking cookies.

Qt QML

Support for writing JavaScript function names to Linux's perf output

Reduced overall memory consumption

Moved all the debug services into plugins. Custom debug services can be added width additional plugins.

Font rendering

Optional support for using FreeType on Mac OS X

Embedded platforms

Added support for NVIDIA Jetson TK1 Pro boards running Vibrante Linux via a new eglfs backend utilizing DRM, EGLDevice and EGLStream

Added support for Intel Atom-based NUCs

Desktop platforms

Windows 10 fully supported (classic and WinRT app)

Windows Store apps are now composited inside a XAML layer, allowing for better integration with the native UI layer

Windows embedded

Added support for WEC2013

Qt WebView

Added support for WinRT

Qt Canvas3D

Support for using Qt Quick items as textures

Support for rendering directly to Qt Quick scene background or foreground

Qt Nfc

Added support for Android

Qt Positioning

Added support for OS X

Added support for GPS receivers exposed as a serial port on Windows desktop (all versions)

Removed libgeoclue dependency for the GeoClue backend

Qt Location

Added the Qt Location module providing maps, navigation and places APIs for Qt Quick

Other Changes

Embedded platforms

libinput, when present, is now the default for eglfs and linuxfb

Image Formats

For security reasons, the MNG and JPEG 2000 handlers will by default no longer be built, unless the corresponding codec libraries are provided by the OS. Hence, the binary Qt releases for Windows and Mac will not contain prebuilt handlers for those formats, but users can still build them from source.

Deprecated Modules

The following modules are part of Qt 5.6 release, but deprecated and considered for removal in subsequent releases of Qt:

Qt Script

Qt Enginio

Removed Modules

With Qt 5.6 the following modules are no longer part of the release packages, but users can still build them from source:

Qt WebKit

Qt Declarative (Qt Quick 1)

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