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 > >>> > >> >