1.tar jxvf arm-linux-gcc-3.4.1.tar -C /
vi /etc/profile (这只是一个命令，并不需要找到这个文件)
<在Ubuntu 下执行 sudo vim /etc/profile>
最后一行加入：export PATH=/usr/local/arm/3.4.1/bin:$PATH
保存退出后执行：
source /etc/profile
2.编译嵌入式arm版（需要 arm-linux-gcc 的支持）：
编译tslib对触摸屏支持：
下载，tslib1.4.tar.gz，解压后：
cd tslib-1.4
export CC=/usr/local/arm/3.4.1/bin/arm-linux-gcc //指定交叉编译器
./autogen.sh //生成config文件
错误现象：./autogen.sh: 9: autoreconf: not found
解决办法：#sudo apt-get install autoconf
错误现象：Can't exec "automake": 没有该文件或目录 at /usr/bin/autoreconf line 183
解决办法：#sudo apt-get install automake
错误现象：configure.ac:25: error: possibly undefined macro: AC_DISABLE_STATIC
解决办法：#sudo apt-get install libtool
export PATH=/usr/local/arm/3.4.1/bin:$PATH
echo "ac_cv_func_malloc_0_nonnull=yes" >arm-linux.cache
./configure --prefix=/mnt/nfs/tslib1.4-install --host=arm-linux --cache-file=arm-linux.cache --enable-inputapi=yes
make
make install
在/mnt/nfs里生成tslib1.4-install
3。安装qt-everywhere-opensource-src-4.6.2.tar.gz
进入解压目录：
运行
./configure -prefix /usr/local/QTE-4.6.2 -release -opensource -shared -no-largefile -no-qt3support /
-xplatform qws/linux-arm-g++ -embedded arm /
-qt-gif -qt-libpng -qt-libjpeg /
-iconv -little-endian -qt-freetype /
-depths 16,18,24,32 /
-no-dbus -qt-sql-sqlite -qt-kbd-qvfb -qt-kbd-tty -no-glib /
-qt-mouse-tslib /
-I /mnt/nfs/tslib1.4-install/include /
-L /mnt/nfs/tslib1.4-install/lib /
-D__ARM_ARCH_5TEJ__
成功后
make
出现错误
QFontEngineFT::init(QFontEngine::FaceId, bool, QFontEngineFT::GlyphFormat)':
text/qfontengine_ft.cpp:696: warning: initialization to `int' from `qreal'
text/qfontengine_ft.cpp:696: warning: argument to `int' from `qreal'
{standard input}: Assembler messages:
{standard input}:1587: Error: register or shift expression expected -- `orr r3,r2,lsl#16'
{standard input}:1597: Error: register or shift expression expected -- `orr r2,r3,lsl#16'
{standard input}:3206: Error: register or shift expression expected -- `orr r3,r1,lsl#16'
{standard input}:3219: Error: register or shift expression expected -- `orr r3,ip,lsl#16'
解决：参考http://www.qtcn.org/bbs/read.php?tid=24692&fpage=0&toread=&page=1 守望者的临时解决方案:
To fix this issue patch /src/3rdparty/freetype/include/freetype/config/ftconfig.h Line 330.
（原来的为） "orr %0, %2, lsl #16/n/t" /* %0 |= %2 << 16 */
（修改后为） "orr %0, %0, %2, lsl #16/n/t" /* %0 |= %2 << 16 */
之后经过漫长的等待出现下列错误
/usr/local/arm/3.4.1/lib/gcc/arm-linux/3.4.1/../../../../arm-linux/bin/ld: warning: libts-0.0.so.0, needed by /root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so, not found (try using -rpath or -rpath-link)
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_close'
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_config'
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_read'
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_read_raw'
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_open'
/root/qt-everywhere-opensource-src-4.6.2/lib/libQtGui.so: undefined reference to `ts_fd'
collect2: ld returned 1 exit status
解决办法：
修改qt-everywhere-opensource-src-4.6.0/mkspecs/qws/linux-arm-g++/qmake.conf 文件（添加lts参数）：
QMAKE_CC = arm-linux-gcc -lts
QMAKE_CXX = arm-linux-g++ -lts
QMAKE_LINK = arm-linux-g++ -lts
QMAKE_LINK_SHLIB = arm-linux-g++ -lts
参考：http://74.125.153.132/search?q=cache:3WzcJeRRj4sJ:nckuhuahua.pixnet.net/blog/post/30066956+libQtGui.so:+undefined+reference+to+%60ts_read%27&cd=3&hl=en&ct=clnk&client=iceweasel-a
又经过漫长的时间，成功结束
接下来是make install
在ubtuntu上编译成功 说明编译的库可用。然后把lib下载到试验箱上，运行成功
