（二）QT编译环境和移植开发板QT运行环境库

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上面我们已经吧tslib库一直好了，详情请看https://mp.csdn.net/postedit/80099257，现在进行 QT编译环境和开发板QT运行环境库的移植。

一、下载qt-4.6.4并安装

在清华大学的镜像库下载： https://mirrors.tuna.tsinghua.edu.cn/qt/archive/qt/4.6/

我的下载在/home/shun/fl2440/fl2440_1/QT/qt路径下。

[shun@localhost qt]$ ls
qt-everywhere-opensource-src-4.6.4.tar.gz
[shun@localhost qt]$ tar -zxvf qt-everywhere-opensource-src-4.6.4.tar.gz
[shun@localhost qt]$ cd qt-everywhere-opensource-src-4.6.4
[shun@localhost qt-everywhere-opensource-src-4.6.4]$ vim src/3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp //修改文件
-- (__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 30) 
++(__UCLIBC_MINOR__ == 9 && __UCLIBC_SUBLEVEL__ <= 32) && defined(__LINUXTHREADS_OLD__)

写脚本：

[shun@localhost qt-everywhere-opensource-src-4.6.4]$ vim build.sh
#!/bin/sh  
./configure -prefix /opt/qt4/ \
-release \
-shared \
-fast \
-no-largefile \
-qt-sql-sqlite \
-no-qt3support \
-no-xmlpatterns \
-no-mmx \
-no-3dnow \
-no-sse \
-no-sse2 \
-no-svg \
-no-webkit \
-qt-zlib \
-qt-gif \
-qt-libtiff \
-qt-libpng \
-qt-libmng \
-qt-libjpeg \
-qt-gfx-transformed \
-qt-gfx-linuxfb \
-make libs \
-xplatform qws/linux-arm-g++ \
-nomake tools \
-nomake examples \
-nomake docs \
-nomake demo \
-no-nis \
-no-cups \
-no-iconv \
-no-dbus \
-no-openssl \
-embedded arm \
-little-endian \
-qt-freetype \
-depths 16,18 \
-no-glib \
-qt-mouse-tslib \
-no-javascript-jit \
-no-script \
-no-scripttools \

[shun@localhost qt-everywhere-opensource-src-4.6.4]$ chmod a+x build.sh

[shun@localhost qt-everywhere-opensource-src-4.6.4]$ vim mkspecs/qws/linux-arm-g++/qmake.conf    //修改qmake.conf

#
# qmake configuration for building with arm-linux-g++
#

include(../../common/g++.conf)
include(../../common/linux.conf)
include(../../common/qws.conf)

#add by liushun 2018/04/23
QMAKE_INCDIR = /opt/tslib/include
QMAKE_INCDIR = /opt/tslib/lib
# modifications to g++.conf
# change by liushun 2018/04/23
QMAKE_CC                = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-gcc -lts
QMAKE_CXX               = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-g++ -lts
QMAKE_LINK              = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-g++ -lts
QMAKE_LINK_SHLIB        = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-g++ -lts

# modifications to linux.conf
# change by liushun 2018/04/23
QMAKE_AR                = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-ar cqs
QMAKE_OBJCOPY           = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-objcopy
QMAKE_STRIP             = /opt/x-tools/arm920t/bin/arm-arm920t-linux-gnueabi-strip


load(qt_config)

再修改src/gui/itemviews/qabstractitemview.cpp
[shun@localhost qt-everywhere-opensource-src-4.6.4]$ vim src/gui/itemviews/qabstractitemview.cpp

--case Qt::Key_BackSpace:
++case Qt::Key_Backspace:

执行脚本

[shun@localhost qt-everywhere-opensource-src-4.6.4]$ ./build.sh

执行有个选项选择“o”

执行完了sudo make && sudo make install

[shun@localhost qt-everywhere-opensource-src-4.6.4]$ sudo make && sudo make install

再把安装路径/opt/qt4/下的bin文件夹里的qmake传到虚拟机上的 /usr/local/bin目录下，并修改虚拟机的环境变量。

[shun@localhost opt]$ sudo mv qt4/bin/qmake /usr/local/bin/
[shun@localhost opt]$ cd ~
[shun@localhost ~]$ vim /home/shun/.bash_profile
export QT=/opt/qt5
export QTLIB=$QT/lib
export QTBIN=$QT/bin

ok!Linux下QT程序编译环境搭建完成。

但最终目的是要在开发板上把qt程序跑起来，所以还需要在开发板上搭建qt运行环境。把qt5/lib/目录下的fonts文件夹，把它打包放到开发板上解压并把环境变量设置好就ok。

[shun@localhost lib]$ tar -czf fonts.tar.gz fonts/     //这里在Linux
/liushun/download >: tftp -gr fonts.tar.gz 192.168.2.8            //这里在开发板，/liushun/download是我创建的文件夹
/liushun/download >: tar -xzvf fonts.tar.gz
/liushun/download/fonts >: cd ~
~ >: vim /etc/profile    // 添加下面部分
export QWS_MOUSE_PROTO=TSLIB:/dev/input/event0
export QTLIB=/liushun/download
export QT_QWS_FONTDIR=/liushun/download/fonts

到这里开发板的qt运行环境就搭建好了，以后可以把可执行文件拿到开发板上运行了。