I downloaded the Tk module. Unpacked it by zcat Tk800.0_01.tar.gz | tar xf - then cd to that directory (cd Tk-804.029_500) then perl Makefile.PL and I got this output: http://i.stack.imgur.com/FZWWI.png I'm using RHEL6. I installed the missing packages and then the perl Makefile.PL worked fine after that I tried 'make' and it gave error. Check the screenshot here-> http://bit.ly/rs4nKKThread Next