From: Kaye Ng <sbstn26@...>
Date: 2011-10-19T16:44:36+09:00
Subject: Re: 'gem install' help please

Adam Stegman wrote in post #1027138:

>> Gem files will remain installed in
>> C:/Ruby192/lib/ruby/gems/1.9.1/gems/rdiscount-1.6.8 for inspection.
>> Results logged to
>> C:/Ruby192/lib/ruby/gems/1.9.1/gems/rdiscount-1.6.8/ext/gem_make.out
>
> What is in the log files? Check the directory named at the bottom of
> this output.
>
> Adam Stegman

Hi Adam.
I opened the gem_make.out with Notepad:

C:/Ruby192/bin/ruby.exe extconf.rb
checking for random()... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
  --with-opt-dir
  --without-opt-dir
  --with-opt-include
  --without-opt-include=${opt-dir}/include
  --with-opt-lib
  --without-opt-lib=${opt-dir}/lib
  --with-make-prog
  --without-make-prog
  --srcdir=.
  --curdir
  --ruby=C:/Ruby192/bin/ruby
  --with-rdiscount-dir
  --without-rdiscount-dir
  --with-rdiscount-include
  --without-rdiscount-include=${rdiscount-dir}/include
  --with-rdiscount-lib
  --without-rdiscount-lib=${rdiscount-dir}/lib
C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed 
to generate an executable file. (RuntimeError)
You have to install development tools first.
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:435:in `try_link0'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:440:in `try_link'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:552:in `try_func'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:797:in `block in have_func'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in 
postpone'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:254:in `open'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:254:in `open'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
  from C:/Ruby192/lib/ruby/1.9.1/mkmf.rb:796:in `have_func'
  from extconf.rb:5:in `<main>'
-------------------------------------------------------------

Is this what you're asking? I have no idea what to do with it.

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