安装GTK on DirectFB
参考：http://www.directfb.org/wiki/index.php/Projects:GTK_on_DirectFB
GTK-DFB Requirements
Other than a recent DirectFB version ( you need DirectFB >= 0.9.25 ), a complete GTK-DFB environment is composed by the following libraries (system libraries like libc are of course needed but are not listed here):
- GTK+ - The GTK+ library which includes the GTK-DFB backend
- Cairo - The 2D vectorial drawing library that GTK relies upon starting from version 2.8.0
- Pango - GTK+ font rendering library
- GLib - A Library that extends libc functions
- ATK - GTK+ accessibility toolkit
Notice that the while Glib and ATK are indipendent from the windowing system underlying GTK+, so you don't need to recompile them and stock òibraries provided by your distribution will do.
Building the Requirements
First, make sure you have DirectFB ( >=0.9.25 ), ATK ( >=1.0.1 ) and Glib ( >=2.13.1 ) installed togheter with all the development stuff.
（注：需要首先安装DirectFB，参考http://shangweixiao.spaces.live.com/blog/cns!A228238F05698C9E!558.entry ）
Then open a new terminal and set up the following variables:
export PREFIX=/home/xxx/gtkdfb （注：这里建议装到你的home下吧，比较方便。）
export LD_LIBRARY_PATH=$PREFIX/lib （注：这里还需要指定你DirectFB的安装路径，可以这样写：export LD_LIBRARY_PATH=/home/xxx/gtkdfb/lib:/home/xxx/DirectFB-1.1.1/lib）
export PKG_CONFIG_PATH=$LD_LIBRARY_PATH/pkgconfig（注：再加上DirectFB的的pkgconfig，export PKG_CONFIG_PATH=/home/xxx/gtkdfb/lib/pkgconfig:/home/xxx/DirectFB-1.1.1/lib/pkgconfig）
export CFLAGS="-g"（注：加上这个，你就可以在GDB中调试GTK了。）
This allows to install GTK-DFB runtime-libraries and developement files in a place (/usr/gtkdfb in this case) where they don't mess up with the standard set of GTK+ libraries.
Next, get cairo and build it with the DirectFB backend enabled:
mkdir -p $PREFIX/src
cd $PREFIX/src
wget http://cairographics.org/releases/cairo-1.4.6.tar.gz （注：这里注意一下版本，这个版本比较旧了，如果编译不过了换个新版本试试。Linux上版本依赖很厉害！以下有同样问题。）
tar -xvzf cairo-1.4.6.tar.gz
cd cairo-1.4.6
sh configure --prefix=$PREFIX --enable-directfb --disable-xlib --disable-win32 （注：在Linux系统上 --disable-win32 纯属多余，并且建议取消掉--disable-xlib 否则某些GTK程序可能会编译不过。）
make
make install
Do the same for PanGO （注：这个没有什么问题，注意一下版本就行。）
wget http://ftp.acc.umu.se/pub/GNOME/sources/pango/x.y/pango-x.y.z.tar.bz2
tar -xvjf pango-x.y.z.tar.bz2
cd pango-x.y.z
./configure --prefix=$PREFIX --without-x
make
make install
Building GTK-DFB
You can now build GTK-DFB
cd $PREFIX/src
wget http://ftp.gnome.org/pub/GNOME/sources/gtk+/2.10/gtk+-2.10.13.tar.bz2 （注：如果可以的话，用个稍微新点的版本吧。）
tar -xvjf gtk+-2.10.13.tar.bz2
cd gtk+
./configure --prefix=$PREFIX --with-gdktarget=directfb --without-x
make
make install
Hey presto! If everything went according to plan, you have compiled GTK-DFB, congratulations!
Testing
To see if it worked, try running (*as root*, unless you've compiled DFB with a specific option which allows unprivileged users to access the framebuffer):
export LD_LIBRARY_PATH=/usr/gtkdfb/lib
/usr/gtkdfb/bin/gtk-demo
注意：请保持在一个终端或者XTerminal里执行以上命令。否则前面设置的全局变量可能会有问题。
另：官方网站在最后介绍了“Compiling applications against GTK-DFB - the GIMP”，这里提示注意一下，如果GIMP到最后连接不过，提示说找不到XXX函数，请尝试换个GIMP或者GTK版本试试。比如GIMP 2.4.0就在GTK 2.10.13上连接不过。
Good Luck！^_^