From: ts Date: 2001-02-08T22:45:58+09:00 Subject: [ruby-talk:10575] Re: Installing on Mandrake 7.1 >>>>> "p" == peterhi writes: p> Does have_header() look at the dependencies within a header file and p> thus the reason it claimed tk.h was not found was that X11/Xlib.h was p> not found? Seems a likely explanation. Yes, have_header() call cpp and cpp look at the dependencies. Guy Decoux