From: dAHen Date: 2001-10-13T00:41:06+09:00 Subject: [ruby-talk:22467] Re: Learn Ruby/Tk or Ruby/GTK? && Problems with these. tk> ruby don't search the file tk.h, it try to preprocess (with cpp) this file tk> tk> pigeon% cat conftest.c tk> #include tk> pigeon% Ok, I installed everything with these rpm:s. tcl.rpm tcl-devel.rpm tk.rpm tk> This mean that you must have on your system, all include files needed by tk> tk.h. For example you need X11/Xlib.h Do I have to build both tcl and tk from source? I tried that the first time, but it didn't go very well.