I am on Debian Lenny with Ruby 1.9.2 (under RVM). I installed ImageMagick, required by rmagick, from source following this guide.
Now I get the following output when trying to install rmagick with gem install rmagick :
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
/usr/local/rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... yes
Warning: Found more than one ImageMagick installation. This could cause problems at runtime.
/usr/local/bin/Magick-config reports version 6.7.4 Q16 is installed in /usr/local
/usr/bin/Magick-config reports version 6.3.7 Q16 is installed in /usr
Using 6.7.4 Q16 from /usr/local.
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=/usr/local/rvm/rubies/ruby-1.9.2-p290/bin/ruby
**/usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:368:in `try_do': The complier failed to generate an executable file. (RuntimeError)**
**You have to install development tools first.**
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:452:in `try_cpp'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:834:in `block in have_header'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:693:in `block in checking_for'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:280:in `block (2 levels) in postpone'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:280:in `block in postpone'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:254:in `open'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:276:in `postpone'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:692:in `checking_for'
from /usr/local/rvm/rubies/ruby-1.9.2-p290/lib/ruby/1.9.1/mkmf.rb:833:in `have_header'
from extconf.rb:193:in `<main>'
Edit: found the mkmf.log, which has the following errors:
"gcc -o conftest -I/usr/local/rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/x86_64-linux -I/usr/local/rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1/ruby/backward -I/usr/local/rvm/rubies/ruby-1.9.2-p290/include/ruby-1.9.1 -I. -fopenmp -I/usr/local/include/ImageMagick -fopenmp -I/usr/local/include/ImageMagick conftest.c -L. -L/usr/local/rvm/rubies/ruby-1.9.2-p290/lib -Wl,-R/usr/local/rvm/rubies/ruby-1.9.2-p290/lib -L/usr/local/lib -lMagickCore -L/usr/local/lib -lMagickCore -Wl,-R -Wl,/usr/local/rvm/rubies/ruby-1.9.2-p290/lib -L/usr/local/rvm/rubies/ruby-1.9.2-p290/lib -lruby-static -lpthread -lrt -ldl -lcrypt -lm -lc"
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathStart'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetViewbox'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetFont'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPopPattern'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetFillPatternURL'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeDashArray'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawAllocateWand'
/usr/local/lib/libMagickCore.so: undefined reference to `PushDrawingWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathClose'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetRedQuantum'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawScale'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetTextUnderColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawLine'
/usr/local/lib/libMagickCore.so: undefined reference to `PopDrawingWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DestroyPixelWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetFontSize'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawTranslate'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathMoveToAbsolute'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawAnnotation'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeAntialias'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPushDefs'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathFinish'
/usr/local/lib/libMagickCore.so: undefined reference to `DestroyMagickWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawRoundRectangle'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPopDefs'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetQuantumColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetFillColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawComposite'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetClipPath'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawRender'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawEllipse'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawComment'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathLineToAbsolute'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetBlueQuantum'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeLineJoin'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPushPattern'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetColor'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPushClipPath'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeLineCap'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawArc'
/usr/local/lib/libMagickCore.so: undefined reference to `NewMagickWandFromImage'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetOpacityQuantum'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPopClipPath'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetClipRule'
/usr/local/lib/libMagickCore.so: undefined reference to `NewPixelWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawRotate'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawRectangle'
/usr/local/lib/libMagickCore.so: undefined reference to `DestroyDrawingWand'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokeWidth'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawPathEllipticArcAbsolute'
/usr/local/lib/libMagickCore.so: undefined reference to `DrawSetStrokePatternURL'
/usr/local/lib/libMagickCore.so: undefined reference to `PixelSetGreenQuantum'
