From: ts Date: 2002-06-01T17:50:56+09:00 Subject: Re: mkmf question - conditional installs >>>>> "S" == Sunblade writes: S> I have two extensions I'm working on. Both .c files (we'll call them x.c S> and y.c) are in the same directory. One of these files I want to install S> *only* if it isn't already installed. So, I wrote my extconf.rb file like S> this: The best, probably, is to have an extconf.rb for each of your extension. You have an example in bdb Guy Decoux