Can't exec "xmlrpc-c-config": No such file or directory at ./Makefile.PL line 21. Use of uninitialized value in string eq at ./Makefile.PL line 23. You don't seem to have a 'xmlrpc-c-config' shell command, which probably means Xmlrpc-c is not installed. Without that program, we don't know how to link the Perl extension with Xmlrpc-c.