Follow up on my bug report I started from scratch again to try and find what broke the Tk Installing this to the base perl install install ExtUtils::Command 1.04 1.05 M/MS/MSCHWERN/ExtUtils-MakeMaker-6.16.tar.gz breaks the install of Tk cp widget ../blib/script/widget /proj/wdt/gnu_sun5.8/perl-5.8.0_ithread_malloc1/bin/perl "-MExtUtils::MY" -e "MY->fixin(shift)" ../blib/script/widget Unrecognized switch: --center (-h will show valid options). make[1]: *** [manifypods] Error 255 make[1]: Leaving directory `/proj/wdtold/warrend/perl-5.8.0_ithread_malloc1/.cpan/build/Tk800.024/demos' make: *** [subdirs] Error 2 /proj/wdt/sun5.8/bin/make -- NOT OK Running make testThread Next