please help me to solve the problem

[Caleb]

hi,
   I am a newer for FreeBSD, and I try to install KDE4.2.1, but got
some problem, (the error cord like the attpachment), would you mind
tell me where I and find out the solution, or how to solve them ? I
reinstall the FreeBSD 7.1, xorg and kde4 several times, but not
succeeded. please help. thank you very much.
Best Regards.
caleb
-------------- next part --------------
===>  Installing for xorg-7.4
===>   xorg-7.4 depends on file: /usr/local/lib/dri/r128_dri.so - not found
===>    Verifying reinstall for /usr/local/lib/dri/r128_dri.so in /usr/ports/graphics/dri
===>   dri-7.3,2 depends on executable: makedepend - found
===>   dri-7.3,2 depends on executable: gmake - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/glproto.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/dri2proto.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/x11.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/xext.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/xxf86vm.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/xdamage.pc - found
===>   dri-7.3,2 depends on file: /usr/local/libdata/pkgconfig/xfixes.pc - found
===>   dri-7.3,2 depends on shared library: drm - found
===>   dri-7.3,2 depends on shared library: expat.6 - found
===>  Configuring for dri-7.3,2
checking build system type... i386-portbld-freebsd7.1
checking host system type... i386-portbld-freebsd7.1
checking for gcc... cc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether cc accepts -g... yes
checking for cc option to accept ISO C89... none needed
checking how to run the C preprocessor... cc -E
checking for gcc... (cached) cc
checking whether we are using the GNU C compiler... (cached) yes
checking whether cc accepts -g... (cached) yes
checking for cc option to accept ISO C89... (cached) none needed
checking whether we are using the GNU C++ compiler... yes
checking whether c++ accepts -g... yes
checking for gmake... gmake
checking for makedepend... /usr/local/bin/makedepend
checking for sed... /usr/bin/sed
checking for pkg-config... /usr/local/bin/pkg-config
checking pkg-config is at least version 0.9.0... yes
checking whether to enable assembly... yes, x86
checking for cc option to produce PIC... -fPIC
checking for dlopen... yes
checking for posix_memalign... yes
checking pkg-config files for X11 are available... yes
checking for LIBDRM... yes
checking for DRI2PROTO... yes
checking for DRIGL... ===>  Script "configure" failed unexpectedly.
Please report the problem to x11 at FreeBSD.org [maintainer] and attach the
"/usr/ports/graphics/dri/work/Mesa-7.3/config.log" including the output of
the failure of your make command. Also, it might be a good idea to provide
an overview of all packages installed on your system (e.g. an `ls
/var/db/pkg`).
*** Error code 1

Stop in /usr/ports/graphics/dri.
*** Error code 1

Stop in /usr/ports/graphics/dri.
*** Error code 1

Stop in /usr/ports/x11/xorg.
*** Error code 1

Stop in /usr/ports/x11/xorg.