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Configuring RMagick 1.15.8
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for ruby... no
configure: error: Can't install RMagick. Ruby must be installed first.
RMagick configuration failed with status 1.

$ which ruby
 /usr/local/bin/ruby
# ln -s /usr/local/bin/ruby /usr/bin/ruby

Configuring RMagick 1.15.8
checking for gcc... gcc
checking for C compiler default output file name... a.out
checking whether the C compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables... 
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ANSI C... none needed
checking for ruby... /usr/bin/ruby
checking for Magick-config... no
checking for GraphicsMagick-config... no
configure: error: Can't install RMagick. Can't find Magick-config or GraphicsMagick-config program.
RMagick configuration failed with status 1.

RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
RMagick: FreeType library is not available `/usr/share/fonts/default/Type1/n019003l.pfb'.
/usr/local/bin/ruby -I /usr/local/lib/ruby/gems/1.8/gems/rmagick-1.15.8/./lib -I /usr/local/lib/ruby/gems/1.8/gems/rmagick-1.15.8/./ext/RMagick affine_transform.rb (example 16 of 183)
affine_transform.rb:6:in `read': no decode delegate for this image format `images/Flower_Hat.jpg' (Magick::ImageMagickError)
        from affine_transform.rb:6
setup.rb:             Too many examples failed. Search for "Help!" at
            http://rmagick.rubyforge.org/install-faq.html.
post-setup.rb: affine_transform.rb example returned error code 256
make: *** [all] エラー 1


Gem files will remain installed in /usr/local/lib/ruby/gems/1.8/gems/rmagick-1.15.8 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.8/gems/rmagick-1.15.8/gem_make.out