From: Praveen <praveendevarao@...>
Date: 2009-03-19T21:17:24+09:00
Subject: Problem compiling c extension with ruby-1.9.1 on windows

Hi,

I am trying to compile a ruby-c extension with ruby1.9.1 (binaries
downloaded from ruby-lang.org) on windows using VS 2008. when I run
ruby extconf.rb I get an error as below.

c:/ruby191/lib/ruby/1.9.1/mkmf.rb:363: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:416:in `try_link0'
        from c:/ruby191/lib/ruby/1.9.1/mkmf.rb:420:in `try_link'
        from c:/ruby191/lib/ruby/1.9.1/mkmf.rb:528:in `try_func'
        from c:/ruby191/lib/ruby/1.9.1/mkmf.rb:724:in `block in
have_library'
        from c:/ruby191/lib/ruby/1.9.1/mkmf.rb:669: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:668:in `checking_for'
        from c:/ruby191/lib/ruby/1.9.1/mkmf.rb:719:in `have_library'
        from extconf.rb:26:in `<main>'

What development tools is it expecting? how will I be able to install
the same?

Any help is highly appreciated.

Thanks

Praveen