I have Rails 3 and Ruby 1.9.2
Installing rmagick (2.13.1) with native extensions
/opt/local/lib/ruby/site_ruby/1.9/rubygems/installer.rb:551:in `rescue
in block in build_extensions': ERROR: Failed to build gem native
extension. (Gem::Installer::ExtensionBuildError)
/opt/local/bin/ruby19 extconf.rb
checking for Ruby version >= 1.8.5... yes
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
--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=/opt/local/bin/ruby19
/opt/local/lib/ruby/1.9/mkmf.rb:368:in `try_do': The complier failed to
generate an executable file. (RuntimeError)
You have to install development tools first
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