Below is the line where my installation consistently fails whether I use cpan or perform a manual installation. Any ideas?

gcc -shared Tk.o chnGlue.o encGlue.o evtGlue.o objGlue.o tixGlue.o tkGlue.o tkGlue_f.o tkWin32Dll.o -o blib/arch/auto/Tk/Tk.so pTk/libpTk.a -L/usr/X11R6/lib -lX11 -lnsl -lm

/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libX11.so when searching for -lX11

/usr/bin/ld: skipping incompatible /usr/X11R6/lib/libX11.a when searching for -lX11

/usr/bin/ld: cannot find -lX11

collect2: ld returned 1 exit status

make: *** [blib/arch/auto/Tk/Tk.so] Error 1

[root@lguut Tk-804.027]# perl -v

This is perl, v5.8.5 built for x86_64-linux-thread-multi

Copyright 1987-2004, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on this system using `man perl' or `perldoc perl'. If you have access to the Internet, point your browser at http://www.perl.com/, the Perl Home Page.

[root@lguut Tk-804.027]# uname -a

Linux lguut.lrltech.com 2.6.9-42.ELsmp #1 SMP Wed Jul 12 23:32:02 EDT 2006 x86_64 x86_64 x86_64 GNU/Linux

[root@lguut Tk-804.027]#