[XeTeX] could not build in Debian linux!

[Kia Teymourian]

hi,
i followed the instructions for installing the XeTeX on Linux and wanted 
to build it for my debian system.  I installed also all the necessary  
packages and started the  "sh build-xetex", which broke with this massage:

In file included from 
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:36,
                 from ../../../texk/web2c/xetexdir/XeTeX_ext.c:68:
../../../texk/web2c/xetexdir/XeTeXFontMgr.h:40:35: error: 
fontconfig/fontconfig.h: No such file or directory
In file included from 
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:36,
                 from ../../../texk/web2c/xetexdir/XeTeX_ext.c:68:
../../../texk/web2c/xetexdir/XeTeXFontMgr.h:43: error: expected '=', 
',', ';', 'asm' or '__attribute__' before '*' token
In file included from ../../../texk/web2c/xetexdir/XeTeX_ext.c:68:
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:56: error: expected 
')' before 'fontRef'
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:62: error: expected 
'=', ',', ';', 'asm' or '__attribute__' before 'findFontByName'
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:65: error: expected 
')' before 'fontRef'
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:69: error: expected 
')' before 'fontRef'
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:86: error: expected 
')' before 'fontRef'
../../../texk/web2c/xetexdir/XeTeXLayoutInterface.h:92: error: expected 
'=', ',', ';', 'asm' or '__attribute__' before 'getFontRef'
../../../texk/web2c/xetexdir/XeTeX_ext.c:477: error: expected ')' before 
'fontRef'
../../../texk/web2c/xetexdir/XeTeX_ext.c: In function 'findnativefont':
../../../texk/web2c/xetexdir/XeTeX_ext.c:754: error: 'PlatformFontRef' 
undeclared (first use in this function)
../../../texk/web2c/xetexdir/XeTeX_ext.c:754: error: (Each undeclared 
identifier is reported only once
../../../texk/web2c/xetexdir/XeTeX_ext.c:754: error: for each function 
it appears in.)
../../../texk/web2c/xetexdir/XeTeX_ext.c:754: error: expected ';' before 
'fontRef'
../../../texk/web2c/xetexdir/XeTeX_ext.c:795: warning: assignment makes 
pointer from integer without a cast
../../../texk/web2c/xetexdir/XeTeX_ext.c:802: error: 'fontRef' 
undeclared (first use in this function)
../../../texk/web2c/xetexdir/XeTeX_ext.c:806: warning: initialization 
makes pointer from integer without a cast
../../../texk/web2c/xetexdir/XeTeX_ext.c:823: warning: assignment makes 
pointer from integer without a cast
../../../texk/web2c/xetexdir/XeTeX_ext.c:828: warning: assignment makes 
pointer from integer without a cast
../../../texk/web2c/xetexdir/XeTeX_ext.c: In function 'makefontdef':
../../../texk/web2c/xetexdir/XeTeX_ext.c:1085: error: 'PlatformFontRef' 
undeclared (first use in this function)
../../../texk/web2c/xetexdir/XeTeX_ext.c:1085: error: expected ';' 
before 'fontRef'
../../../texk/web2c/xetexdir/XeTeX_ext.c:1120: error: 'fontRef' 
undeclared (first use in this function)
make: *** [XeTeX_ext.o] Error 1
ls: Work/texk/web2c/xetex: No such file or directory