Can't compile mplayer after upgrading from xfree86 to x.org

[Xiaoyang Gu <xiaoyang.backup@gmail.com>]

Today I upgrade xfree86 to x.org using the sources from "deb
http://people.debian.org/~dnusinow/xorg ./"
There was an error during upgrading as mentioned by waja@gmx.de

Setting up xfree86-common (6.8.2.dfsg.1-0pre1v1) ...
update-rc.d: /etc/init.d/xfree86-common exists during rc.d purge (use -f to
force)
dpkg: error processing xfree86-common (--configure):
 subprocess post-installation script returned error exit status 1

After update-rc.d -f remove xfree86-common as root, things seemed to be ok. 

Then I compiled mplayer from source, it failed. I got such messages:
Gui/libgui.a(ws.o)(.text+0x18b): In function `wsXInit':
: undefined reference to `XineramaIsActive'
Gui/libgui.a(ws.o)(.text+0x1a9): In function `wsXInit':
: undefined reference to `XineramaQueryScreens'
Gui/libgui.a(ws.o)(.text+0x1b4): In function `wsXInit':
: undefined reference to `xinerama_screen'
Gui/libgui.a(ws.o)(.text+0x1c0): In function `wsXInit':
: undefined reference to `xinerama_screen'
Gui/libgui.a(ws.o)(.text+0x4ba): In function `wsXInit':
: undefined reference to `XF86VidModeGetModeLine'
/usr/lib/libGL.a(glxcmds.o)(.text+0x3234): In function `glXGetMscRateOML':
: undefined reference to `XF86VidModeQueryVersion'
/usr/lib/libGL.a(glxcmds.o)(.text+0x3268): In function `glXGetMscRateOML':
: undefined reference to `XF86VidModeGetModeLine'
collect2: ld returned 1 exit status
make: *** [mplayer] Error 1

But when using xfree86, there wasn't any errors during the compiling.
I think this is caused by the new xorg package.

  xiaoyang