I''m have a very big trouble with my project. I install RMagick on Centos, and catch error: I use RVM + ruby 1.9.3 [kastet@v989 ~]$ gem install rmagick Building native extensions. This could take a while... ERROR: Error installing rmagick: ERROR: Failed to build gem native extension. /home/kastet/.rvm/rubies/ruby-1.9.3-p0/bin/ruby extconf.rb checking for Ruby version >= 1.8.5... yes extconf.rb:128: Use RbConfig instead of obsolete and deprecated Config. checking for gcc... yes checking for Magick-config... yes checking for ImageMagick version >= 6.4.9... yes checking for HDRI disabled version of ImageMagick... yes checking for stdint.h... *** 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 --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=/home/kastet/.rvm/rubies/ruby-1.9.3-p0/bin/ruby /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:381:in `try_do'': The compiler failed to generate an executable file. (RuntimeError) You have to install development tools first. from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:254:in `open'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:254:in `open'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'' from /home/kastet/.rvm/rubies/ruby-1.9.3-p0/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'' from extconf.rb:193:in `<main>'' Gem files will remain installed in /home/kastet/.rvm/gems/ruby-1.9.3-p0/gems/rmagick-2.13.1 for inspection. Results logged to /home/kastet/.rvm/gems/ruby-1.9.3-p0/gems/rmagick-2.13.1/ext/RMagick/gem_make.out I try to find solution in other web, but no solutions with stdint.h not founded. Please help, Dmitriy -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk+unsubscribe-/JYPxA39Uh5TLH3MbocFF+G/Ez6ZCGd0@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.