RMagick 2.13.2 on Windows 7 x64 #39

bf4 opened this Issue Jul 24, 2014 · 5 comments


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Issue by bodrovis
Monday Feb 04, 2013 at 11:24 GMT
Originally opened as #66

Hello. I just noticed that RMagick was updated to 2.13.2 and that it should support ImageMagick 6.8. So i uninstalled my old ImageMagick, downloaded a new one (6.8.2-3-Q16-x64-dll) and installed in with C/C++ headers. Then i tried to install RMagick using instructions found in the Wiki (it helped me to install rmagick 2.13.1), but got the following error:

Mon 04Feb13 15:18:18
This installation of RMagick 2.13.2 is configured for
Ruby 1.9.3 (i386-mingw32) and ImageMagick 6.8.2

generating RMagick2-i386-mingw32.def
compiling rmagick.c
In file included from P:\ImageMagick/include/magick/magick-config.h:25:0,
                 from P:\ImageMagick/include/magick/MagickCore.h:29,
                 from rmagick.h:47,
                 from rmagick.c:13:
P:\ImageMagick/include/magick/magick-baseconfig.h:181:14: error: conflicting types for 'ssize_t'
p:\devkit\mingw\bin\../lib/gcc/mingw32/4.5.2/../../../../include/sys/types.h:118:18: note: previous declaration of 'ssize_t' was here
rmagick.c: In function 'Magick_colors':
rmagick.c:42:5: warning: passing argument 2 of 'GetColorInfoList' from incompatible pointer type
P:\ImageMagick/include/magick/color.h:75:5: note: expected 'size_t *' but argument is of type 'long unsigned int *'
rmagick.c: In function 'Magick_fonts':
rmagick.c:90:5: warning: passing argument 2 of 'GetTypeInfoList' from incompatible pointer type
P:\ImageMagick/include/magick/type.h:98:5: note: expected 'size_t *' but argument is of type 'long unsigned int *'
rmagick.c: In function 'Magick_init_formats':
rmagick.c:178:5: warning: passing argument 2 of 'GetMagickInfoList' from incompatible pointer type
P:\ImageMagick/include/magick/magick.h:125:5: note: expected 'size_t *' but argument is of type 'long unsigned int *'
make: *** [rmagick.o] Error 1

Exactly the same error i got when trying to use ImageMagick x86. My Ruby version is 1.9.3-p374. I recall, that when trying to use ImageMagick 6.8 with older rmagick 2.13.1 i got the same (or near the same) error about conflicting types.

Any clues about this issue?

rmagick member

Comment by rmagick
Monday Feb 04, 2013 at 17:08 GMT

I intend to address the type incompatibilities next. On Linux they do not cause the build to fail but it appears that they do on windows. I will try on windows and keep you updated.

rmagick member

Comment by aplatypus
Tuesday Dec 10, 2013 at 11:48 GMT

Hi there,

I have the ruby windows installer up and running 'nice' under Windows 7 64-bit. I have ImageMagick installed and we have the C headers. Unfortunately the gem won't build for me.

I think we need some instructions for how to install the gem and ponit to the .h files and .lib files.

ruby -S gem install rmagick
Fetching: rmagick-2.13.2.gem (100%)
Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
        ERROR: Failed to build gem native extension.

    B:/lang/ruby/v02.00/bin/ruby.exe extconf.rb

checking for Ruby version >= 1.8.5... yes
Invalid drive specification.
Unable to get ImageMagick version

*** 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:

Gem files will remain installed in B:/lang/ruby/v02.00/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2 for inspection.
Results logged to B:/lang/ruby/v02.00/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2/ext/RMagick/gem_make.out

  • Windows 7 sp1
  • ruby 2
rmagick member

Comment by bodrovis
Tuesday Dec 10, 2013 at 11:56 GMT

@aplatypus Version 2.13.2 is not compatible with Windows. Use version 2.13.1 and these instructions: https://github.com/rmagick/rmagick/wiki It worked for me, though I really had hard times when installing this gem on Windows.

Please not that 2.13.1 will not work with latest ImageMagick, you should use 6.7.9.

rmagick member

Comment by ThaDafinser
Tuesday Mar 04, 2014 at 07:46 GMT

@bodrovis @aplatypus i just successfully installed it (but was really a pain....)



take a look at #175

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