Qt5+Linux 开发与移植

Qt5+Linux 交叉编译移植

• 安装交叉编译器
• 官网上下载Qt5.9.5源码包(.tar.xz)解压。
• 1、tar -xvf xxx.tar.xz
• 2、写脚本qt5config.sh配置configure。touch qt5config.sh
• 3、chmod 777 qt5config.sh
• 4、添加配置参数（Qt5与Qt4参数名字有些不同）

./configure \
 -prefix /usr/local/arm/qt5.9.5\
 -opensource \
 -confirm-license \
 -release -shared \
 -xplatform linux-arm-gnueabi-g++ \
 -optimized-qmake \
 -pch \
 -sql-sqlite \
 -qt-libjpeg \
 -qt-zlib \
 -qt-libpng \
 -qt-freetype \
 -tslib \
 -linuxfb \
 -no-openssl \
 -no-glib \
 -no-opengl \
 -no-sse2 \
 -no-opengl \
 -no-cups \
 -no-separate-debug-info \
 -I/usr/local/arm/tslib/include \
 -L/usr/local/arm/tslib/lib

注意：最好在执行配置时加上–prefix的参数。脚本文件里面的-prefix可能不识别
./configure --prefix=/xxx/xxx
其中–prefix选项就是配置安装的路径，如果不配置该选项，安装后可执行文件默认放在/usr /local/bin，库文件默认放在/usr/local/lib，配置文件默认放在/usr/local/etc，其它的资源文件放在/usr /local/share，比较分散。

• 5、并用vi 查看qt5config.sh内容格式是否正确
• 6、修改qmake.conf

MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib

QT_QPA_DEFAULT_PLATFORM = linuxfb                 #指定Qt显示驱动方式
QMAKE_CFLAGS_RELEASE   += -O2 -march=armv7-a      #指定处理器架构
QMAKE_CXXFLAGS_RELEASE += -O2 -march=armv7-a

include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)

# modifications to g++.conf
QMAKE_CC                = arm-none-linux-gnueabi-gcc -lts
QMAKE_CXX               = arm-none-linux-gnueabi-gcc -lts
QMAKE_LINK              = arm-none-linux-gnueabi-gcc -lts
QMAKE_LINK_SHLIB        = arm-none-linux-gnueabi-gcc -lts

# modifications to linux.conf
QMAKE_AR                = arm-none-linux-gnueabi-ar cqs
QMAKE_OBJCOPY           = arm-none-linux-gnueabi-objcopy
QMAKE_NM                = arm-none-linux-gnueabi-nm -P
QMAKE_STRIP             = arm-none-linux-gnueabi-strip
load(qt_config)

• make -j8

• make install -j8

• 解决ubuntu不支持c++11的问题
  出现问题：unrecognized command line option “-std=c++11”
  升级g++、gcc 版本见https://blog.youkuaiyun.com/liu1055087125/article/details/72888154/
  未完待续…

  必须Linux系统也是64位的，查看命令：uname -a 因为官网对应Linux的qtcreator.run只有64位
  Qt5+Linux 源码编译32位环境
  tar zxvf qt-everywhere-opensource-src-x.x.x.tar.gz
  ./configure
  ./configure -prefix /xxx
  
  如果有几个软件包无法下载：

1. 使用 sudo vim /etc/apt/sources.list 修改镜像源。

2. 然后执行 sudo apt-get update 更新。

镜像源如下，推荐使用国内源，速度更快。镜像源内容转载自 https://blog.youkuaiyun.com/skyie53101517/article/details/50450989。

官方源
deb http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-security main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-updates main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-proposed main restricted universe multiverse
deb-src http://archive.ubuntu.com/ubuntu/ trusty-backports main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ trusty main restricted universe multiverse

g++更新完成可能会出现更新的图形界面（每次更新是否不询问，选yes）

继续上一步配置