QT ARM交叉编译

arm平台：BeagleBone Black

编译平台：ubuntu16.04

交叉编译工具：arm-linux-gnueabihf

qt源码：qt-everywhere-opensource-src-5.8.0.tar.gz

设置arm-linux-gnueabihf路径

~$ vim ~/.bashrc

向文件中加入如下一行

export PATH=$PATH:~/gcc-linaro-4.9-arm-linux-gnueabihf/bin

保存并退出文件，刷新

~$ source ~/.bashrc

配置并编译qt

修改qt支持arm-linux-gnueabihf交叉编译工具

~$ tar -xzf qt-everywhere-opensource-src-5.8.0.tar.gz 
~$ cd qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs
~/qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs$ cp -r linux-arm-gnueabi-g++/ linux-arm-gnueabihf-g++
~/qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs/linux-arm-gnueabihf-g++$ vim qmake.conf

把文件中的arm-linux-gnueabi替换为arm-linux-gnueabihf，如下内容

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


MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib


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


# modifications to g++.conf
QMAKE_CC                = arm-linux-gnueabihf-gcc
QMAKE_CXX               = arm-linux-gnueabihf-g++
QMAKE_LINK              = arm-linux-gnueabihf-g++
QMAKE_LINK_SHLIB        = arm-linux-gnueabihf-g++


# modifications to linux.conf
QMAKE_AR                = arm-linux-gnueabihf-ar cqs
QMAKE_OBJCOPY           = arm-linux-gnueabihf-objcopy
QMAKE_NM                = arm-linux-gnueabihf-nm -P
QMAKE_STRIP             = arm-linux-gnueabihf-strip
load(qt_config)

配置qt

~/qt-everywhere-opensource-src-5.8.0/qtbase/mkspecs/linux-arm-gnueabihf-g++$ cd ~/qt-everywhere-opensource-src-5.8.0
~/qt-everywhere-opensource-src-5.8.0$ ./configure -prefix $PWD/qtbase -opensource -xplatform linux-arm-gnueabihf-g++ -no-opengl -nomake examples

编译qt

~/qt-everywhere-opensource-src-5.8.0$ make -j4

编译完成后在Qt Creator内设置qmake路径，就可以使用了