From: Alexandre Alex <alex.vaillancourt@...>
Date: 2009-02-19T14:17:42+09:00
Subject: "You have to install development tools first." Windows

Hi everybody...!

I'm having some trouble with mkmf.

I'm on Ruby 1.9.1, Windows

Each time I try to use have_library (pretty sure it's not the only
method that doesn't work..), it raises errors:

C:/ruby191/lib/ruby/1.9.1/mkmf.rb:362:in `try_do': The complier failed
to genera
te an executable file. (RuntimeError)
You have to install development tools first.
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:415:in `try_link0'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:419:in `try_link'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:527:in `try_func'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:723:in `block in
have_library'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:668:in `block in
checking_for'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:274:in `block (2 levels)
in postp
one'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:248:in `open'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:274:in `block in
postpone'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:248:in `open'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:270:in `postpone'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:667:in `checking_for'
        from C:/ruby191/lib/ruby/1.9.1/mkmf.rb:718:in `have_library'
        from extconf.rb:6:in `<main>'
-----

I wonder why? And if it is really caused by the fact that development
tools are missing, how do we install them? Never heard of such a thing
before.

Hope someone can help me.

Thank you very much
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