ruby - Installing Thin on Windows fails -

i cannot seem install thin gem on windows. similar question asked here, after tying answers still doesn't work.

trace:

c:/ruby193/bin/ruby.exe extconf.rb checking main() in -lc... *** extconf.rb failed *** not create makefile due reason, lack of necessary libraries and/or headers.  check mkmf.log file more details.  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:/ruby193/bin/ruby     --with-thin_parser-dir     --without-thin_parser-dir     --with-thin_parser-include     --without-thin_parser-include=${thin_parser-dir}/include     --with-thin_parser-lib     --without-thin_parser-lib=${thin_parser-dir}/lib     --with-clib     --without-clib c:/ruby193/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': compiler failed generate executable file. (runtimeerror) have install development tools first.     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:461:in `try_link0'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:476:in `try_link'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:619:in `try_func'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:845:in `block in have_library'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:254:in `open'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:254:in `open'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'     c:/ruby193/lib/ruby/1.9.1/mkmf.rb:840:in `have_library'     extconf.rb:4:in `<main>' 

devkit rubyinstaller windows has been installed.
timemachine has been installed.

other gems work fine. face same or similar issues?
using windows 7 professional , latest 1.9 ruby.

btw:
found this question. comments refer above mentioned question , possible solution reinstall xcode. not using xcode, nor have installed.

i had errors installing thin, , initial one's yours.

the problem devkitvars.bat isn't being run. if run first, gem install thin..

c:\<pathtodevkit>\devkitvars.bat 

depending on setup you'll progress.

the problem me initial install of both ruby , devkit in directory spaces. don't feel computer science has progressed..

so moved directories, changed environment path variable, , registry variables ruby, , verified ruby install.

then i:

del <devkitdir>\config.yml ruby dk.rb init ruby dk.rb install  gem install thin 

i got error.

which long term solution comes.

in [rubydir]\lib\ruby\site-ruby directory, there file called devkit.rb wasn't changed.

perhaps if had deleted file, dk.rb install generate (assuming using make move file here, , aren't checking registry entries or anything). edited it, , changed path of devkit location new location.

that ends error. got errors associated page reference. followed 1 of solutions:

$ gem install specific_install $ gem specific_install -l http://github.com/eventmachine/eventmachine.git  gem install thin 

hip hip!

hope helps.