arm-gcc: /opt/arm/arm-linux-gcc-4.9/usr/bin/arm-poky-linux-gnueabi/arm-poky-linux-gnueabi-g++
使用QT为：qt-everywhere-opensource-src-5.3.2.tar.gz
修改的文件为：qtbase\mkspecs\linux-arm-gnueabi-g++\qmake.conf
#
# qmake configuration for building with arm-linux-gnueabi-g++
#
MAKEFILE_GENERATOR = UNIX
CONFIG += incremental gdb_dwarf_index
QMAKE_INCREMENTAL_STYLE = sublib
QT_QPA_DEFAULT_PLATFORM = linuxfb
QMAKE_CFLAGS_RELEASE += -O2 -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9
QMAKE_CXXFLAGS_RELEASE += -O2 -march=armv7-a -mthumb-interwork -mfloat-abi=hard -mfpu=neon -mtune=cortex-a9
include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)
# modifications to g++.conf
QMAKE_CC = arm-poky-linux-gnueabi-gcc
QMAKE_CXX = arm-poky-linux-gnueabi-g++
QMAKE_LINK = arm-poky-linux-gnueabi-g++
QMAKE_LINK_SHLIB = arm-poky-linux-gnueabi-g++
# modifications to linux.conf
QMAKE_AR = arm-poky-linux-gnueabi-ar cqs
QMAKE_OBJCOPY = arm-poky-linux-gnueabi-objcopy
QMAKE_NM = arm-poky-linux-gnueabi-nm -P
QMAKE_STRIP = arm-poky-linux-gnueabi-strip
load(qt_config)
配制选项为：./configure -prefix $PWD/qtbase -xplatform linux-arm-gnueabi-g++ -opensource -no-c++11 -qreal float -nomake examples
交叉编绎之后就是没有libQt5WebKit.so.5.3.2和libQt5WebKitWidgets.so.5.3.2两个库：
用./configure -prefix $PWD/qtbase -opensource -no-c++11 -qreal float -nomake examples 命令，不指定交叉编绎会生成上面两个库
