DevKit is a MingW/MSYS wrapper for Windows Ruby development.  It might not
be finding it, but he does have a C dev environment.

I know you cut them out earlier, but would you mind sending some of the C
Header Blather our way?  It's probably got some clues as to what's going on.

Also - which versions of Windows, RubyInstaller, and DevKit are you using?




On Tue, Oct 1, 2013 at 4:38 PM, Ross Singer <[log in to unmask]> wrote:

> It's probably also possible to get these working within Cygwin.  Assuming
> the libraries you need to compile against are available in Cygwin, of
> course.
>
> -Ross.
>
> On Oct 1, 2013, at 4:28 PM, "Michael J. Giarlo" <
> [log in to unmask]> wrote:
>
> > Our Windows-based devs all do their Ruby work on Ubuntu and Fedora VMs,
> > FWIW.
> >
> > -Mike
> >
> >
> >
> > On Tue, Oct 1, 2013 at 1:12 PM, Justin Coyne <[log in to unmask]
> >wrote:
> >
> >> If you see something about C-extensions, it's because the library is not
> >> written in pure Ruby, it is a wrapper around a library written in C.
>  Your
> >> system may not have the C compiler or some of the libraries needed to
> >> compile or link the extension.
> >>
> >> Justin Coyne
> >>
> >>
> >> On Tue, Oct 1, 2013 at 2:49 PM, Joshua Welker <[log in to unmask]> wrote:
> >>
> >>> I am attempting to write my first small Ruby app, but I am running into
> >>> major problems just getting off the ground developing in Windows. I
> >>> downloaded the most recent Ruby 2.0 package from RubyInstaller. Then I
> >>> installed DevKit so I could use gems. After some fiddling, I was
> finally
> >>> able to install some gems.
> >>>
> >>>
> >>>
> >>> Some.
> >>>
> >>>
> >>>
> >>> For any given gem I try to install, there’s about a 25% chance that I
> get
> >>> this byzantine error:
> >>>
> >>>
> >>>
> >>> ERROR: Failed to build gem native extension.
> >>>
> >>> […a whole bunch of gibberish about C headers and so forth…]
> >>>
> >>>
> >>>
> >>> In particular, I am trying to install the Blather XMPP client. I am
> >> tempted
> >>> to just give up and develop on Linux, but I am wanting to deploy this
> >>> script to Windows machines and figure I might run into problems if I
> >> don’t
> >>> develop in Windows. I have Googled the heck out of this issue and can’t
> >>> find anything that is similar to my case (the solutions on the
> >>> RubyInstaller Github wiki did not work). Do any of you Ruby people know
> >> why
> >>> I might be having this error so frequently in my Windows environment?
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>>
> >>> Josh Welker
> >>>
> >>> Information Technology Librarian
> >>>
> >>> James C. Kirkpatrick Library
> >>>
> >>> University of Central Missouri
> >>>
> >>> Warrensburg, MO 64093
> >>>
> >>> JCKL 2260
> >>>
> >>> 660.543.8022
> >>>
> >>
>