Instalando ImageMagick e RMagick no Ubuntu 9.10
Em um projeto em Ruby on Rails, que utilizará o plugin FlexImage , precisei instalar a GEM rmagick. Logo percebi que deveria instalar alguns pacotes adicionais no Ubuntu, como ficou claro no erro, como segue: Building native extensions. This could take a while... ERROR: Error installing rmagick: ERROR: Failed to build gem native extension. /usr/bin/ruby1.8 extconf.rb checking for Ruby version >= 1.8.5... yes checking for cc... yes checking for Magick-config... no Can't install RMagick 2.12.2. Can't find Magick-config in /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/X11R6/bin *** 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-op...