配置ARM平台的Qt遇到过很多困难,特别是增加phonon支持,更是麻烦,

编译phonon之前，必须先编译必要的依赖包，否则不会成功，

其中设置PKG_CONFIG_PATH很关键,让后面安装的包可以找到包依赖

phonon依赖以下几个包，所以先安装，我把这几个包全部安装在/opt/gst/：

• libxml2 v2.7.7 or later

• libcheck v0.9.8 or later

• liboil v0.3.2 or later

• gstreamer v0.10.0 or later

• gst-plugins-base v0.10.0 or later

其中liboil又依赖glib,所以安装liboil之前应该先安装glib

/home/cody/gst是编译的主目录，如果出现没找到某某包的错误，应先检查PC Linux环境是否已经安装相应的包

cd /home/cody/gst

export PKG_CONFIG_PATH=/opt/gst/lib/pkgconfig

libxml2

wget ftp://xmlsoft.org/libxml2/libxml2-2.7.2.tar.gz 

tar xvf libxml2-2.7.2.tar.gz 

cd libxml2-2.7.2 

./configure CROSS_COMPILE=arm-linux- --host=arm-linux --prefix=/opt/gst 

make 

make install 

glib

git clone git://git.gnome.org/glib 

cd glib 

git checkout -b stable 2.22.3 

./autogen.sh –noconfigure 

touch arm.cache gedit arm.cache 

复制下面内容到arm.cache: 

glib_cv_long_long_format=yes 

glib_cv_stack_grows=no 

glib_cv_working_bcopy=no 

glib_cv_uscore=no 

ac_cv_func_posix_getpwuid_r=yes 

ac_cv_func_nonposix_getpwuid_r=no 

ac_cv_func_posix_getgrgid_r=no

./configure --cache-file=arm.cache --host=arm-linux --prefix=/opt/gst 

make 

出错一个错误: libgio-2.0.so, not found 

解决: make LDFLAGS="-rpath $PWD/gmodule/.libs"

make install

liboil

git clone git://anongit.freedesktop.org/liboil 

cd liboil 

git checkout -b stable liboil-0.3.15 

./autogen.sh ./configure --prefix=/opt/gst/ --host=arm-linux 

make 

make install

libcheck

下载：http://sourceforge.net/projects/check/  目前为止最新版本是 check-0.9.11.tar_2.gz

解压，进入源代码目录 配置：

./configure --prefix=/opt/gst --host=arm-linux 

make

make install

gstreamer

git clone git://anongit.freedesktop.org/gstreamer/gstreamer 

cd gstreamer 

git checkout -b stable RELEASE-0.10.25

./autogen.sh --noconfigure

./configure --build=i686-linux --host=arm-linux  

--prefix=/opt/gst/ --enable-playbin2 --disable-loadsave --disable-gtk-doc  

ac_cv_func_register_printf_function=no --disable-tests --disable-valgrind 

错误: 

../arm-none-linux-gnueabi/bin/ld: cannot find -lgobject-2.0

解决: 切换到普通用户再重头来一次 

make

make install

gst-plugins-base

先安装liboil-dev: sudo aptitude install liboil-dev

git clone git://anongit.freedesktop.org/gstreamer/gst-plugins-base 

cd gst-plugins-base 

git checkout -b stable RELEASE-0.10.25 

./autogen.sh –noconfigure

./configure --build=i686-linux --host=arm-linux

--prefix=/opt/gst --disable-valgrind --disable-x --disable-gnome_vfs --disable-alsa

--disable-ogg --disable-pango --disable-theora --disable-vorbis --disable-examples

make 

make install

qt-4.8.5

下载qt-everywhere-opensource-src-4.8.5.tar.gz, PC端和ARM端都是同一个文件,下载地址:http://download.qt-project.org/official_releases/qt/4.8/4.8.5/qt-everywhere-opensource-src-4.8.5.tar.gz

解压进入qt主目录然后配置,如果没问题的话,将不会看到phonon不能被支持之类的

./configure

-embedded arm

-prefix /opt/qt-4.8.5-arm

-confirm-license

-opensource

-xplatform qws/linux-arm-g++

-v

-no-largefile

-opensource

-confirm-license

-no-xmlpatterns

-no-qt3support

-multimedia

-audio-backend

-glib

-phonon

-phonon-backend

-declarative

-qt-mouse-tslib

-I/opt/tslib/include

-L/opt/tslib/lib

-I/opt/gst/include

-L/opt/gst/lib

-I/opt/gst/include/glib-2.0

-I/opt/gst/lib/glib-2.0/include

-I/opt/gst/include/gstreamer-0.10/gst

-L/opt/gst/lib/gstreamer-0.10

-force-pkg-config

我这里配置完成之后提示如下:

Qt is now configured for building. Just run 'make'.
Once everything is built, you must run 'make install'.
Qt will be installed into /opt/qt-4.8.5-arm

To reconfigure, run 'make confclean' and 'configure'.

检查configure没问题之后

make

到这里,好像都没什么问题了,make也进行了一二个小时吧,本以为可以通过, 事实是没那么顺利…

出现好多这样的错误:

/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: libgstapp-0.10.so.0, needed by /home/cody/gst/qt-4.8.5-arm/lib/libQtWebKit.so, not found (try using -rpath or -rpath-link)

/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: libgstinterfaces-0.10.so.0, needed by /home/cody/gst/qt-4.8.5-arm/lib/libQtWebKit.so, not found (try using -rpath or -rpath-link)

/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/../../../../arm-none-linux-gnueabi/bin/ld: warning: libgstpbutils-0.10.so.0, needed by /home/cody/gst/qt-4.8.5-arm/lib/libQtWebKit.so, not found (try using -rpath or -rpath-link)

ls /opt/gst/lib 可以看到所需要的库都有,为什么就是找不到呢,肯定跟编译器有关, 应该就是编译器找不到这些共享库,查了好久不知道如何添加路径到编译器的搜索路径里, 但是可以查到编译器会去搜索哪些路径:

$ arm-none-linux-gnueabi-gcc -print-search-dirs | grep libraries | sed 's/:/n/g'

libraries

 =/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/

/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/../../../../arm-none-linux-gnueabi/lib/arm-none-linux-gnueabi/4.5.1/

/opt/FriendlyARM/toolschain/4.5.1/lib/gcc/arm-none-linux-gnueabi/4.5.1/../../../../arm-none-linux-gnueabi/lib/

/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root/lib/arm-none-linux-gnueabi/4.5.1/

/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root/lib/

/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root/usr/lib/arm-none-linux-gnueabi/4.5.1/

/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root/usr/lib/

最笨的办法,只好把/opt/gst/lib全部复制到

/opt/FriendlyARM/toolschain/4.5.1/arm-none-linux-gnueabi/sys-root/usr/lib/

再make,这次终于可以通过了