From: ts Date: 2002-09-12T17:38:44+09:00 Subject: Re: Upper/lowercase shared lib name problem. >>>>> "F" == Farrel Lifson writes: F> require 'mkmf' F> create_makefile('mylib') When you write this, your init function must have the name Init_mylib F> create_makefile('MyLib') it work probably because you have defined Init_MyLib Guy Decoux