gem install rdiscount --platform=ruby -- (スペース、マイナス2つ、スペース)
のあとに、

Provided configuration options: から始まる箇所のオプションのどれかに適切な値(*)を指定してください。
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
北村さんの環境で何を指定すべきなのかまでは分かりません。

オプションのどれかに適切な値(*)を指定してください。


ということで、

C:\hoge\Ruby192>gem install rdiscount --platform=ruby -- with-opt-dir
Building native extensions.  This could take a while...
ERROR:  Error installing rdiscount:
        ERROR: Failed to build gem native extension.

C:/Ruby192/bin/ruby.exe extconf.rb with-opt-dir
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 
genera
te 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 
postp
one'
        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>'


Gem files will remain installed in 
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rdiscount
-1.6.5 for inspection.
Results logged to 
C:/Ruby192/lib/ruby/gems/1.9.1/gems/rdiscount-1.6.5/ext/gem_ma
ke.out

と一つ一つ変えて全部やって見ましたが、全て上と同じ結果でした。

何がいけないのか解りません。

ご教授下さい。

お返事お待ちしています。

宜しくお願いします。


  mail:  jyo555@w...


  北村    丈 


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