Installing rmagick gem on Windows 8 x64 for Ruby 2.0 x64 - windows-8

Question

I'm trying to install Rmagick gem on Windows 8, Ruby 2.0 - all with 64-bit flavour.
I installed Ruby 2.0 with RubyInstaller - version 2.0.0p247, installed DevKit-mingw64-64-4.7.2-20130224 on top. Then I installed ImageMagic - ImageMagick-6.8.6-4-Q16-x64-dll version, to be exact, with developer headers of course. All are directly on C: drive in respective subfolders without spaces in the names.
Then I try to build a gem.
gem install rmagick --platform=ruby -- --with-opt-lib=c:/ImageMagi
ck-6.8.6-Q16/lib --with-opt-include=c:/ImageMagick-6.8.6-Q16/include
the output is
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.
C:/Ruby200-x64/bin/ruby.exe extconf.rb
checking for Ruby version >= 1.8.5... 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=C:/Ruby200-x64/bin/ruby
C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:430:in `try_do': The compiler failed to ge
nerate an executable file. (RuntimeError)
You have to install development tools first.
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:561:in `try_cpp'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1040:in `block in have_header
'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:891:in `block in checking_for
'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:336:in `block (2 levels) in p
ostpone'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:306:in `open'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:336:in `block in postpone'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:306:in `open'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:332:in `postpone'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:890:in `checking_for'
from C:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1039:in `have_header'
from extconf.rb:194:in `<main>'
Gem files will remain installed in C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rmagi
ck-2.13.2 for inspection.
Results logged to C:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2/ext/RMa
gick/gem_make.out
However i think the problem is not in stdint.h file. I then check a content of file
c:\Ruby200-x64\lib\ruby\gems\2.0.0\gems\rmagick-2.13.2\ext\RMagick\
Which is
checking for Ruby version >= 1.8.5... -------------------- yes
--------------------
"x86_64-w64-mingw32-gcc -o conftest.exe -IC:/Ruby200-x64/include/ruby-2.0.0/x64-mingw32 -IC:/Ruby200-x64/include/ruby-2.0.0/ruby/backward -IC:/Ruby200-x64/include/ruby-2.0.0 -I. -Ic:/ImageMagick-6.8.6-Q16/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D_FILE_OFFSET_BITS=64 -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -LC:/Ruby200-x64/lib -Lc:/ImageMagick-6.8.6-Q16/lib -L. -lCORE_RL_magick_ -lX11 -lx64-msvcrt-ruby200 -lshell32 -lws2_32 -limagehlp -lshlwapi "
c:/devkit-x64/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick-6.8.6-Q16/lib/X11.lib when searching for -lX11
c:/devkit-x64/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick-6.8.6-Q16/lib/X11.lib when searching for -lX11
c:/devkit-x64/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick-6.8.6-Q16/lib\X11.lib when searching for -lX11
c:/devkit-x64/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lX11
collect2.exe: error: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7: return 0;
8: }
/* end */
which looks like a problem with X11.lib file. It is, of course, located in ImageMagick lib folder, it has a date of 2009, and I have no idea what to do next or what to think about this.
As I'm working with a large files - 6000x6000 pixels I would love to use 64bit versions wherether possible.

Answer 1

I am experiencing the same problem. Using Ruby 2.0.0p247 and gem 2.0.7 with ImageMagick 6.8.6
I have tried with the 32 bit and the 64 bit version of ImageMagick. In both cases, the terminal output is the same:
$ gem install rmagick --platform=ruby -- --with-opt-dir=/c/ImageMagick64
Temporarily enhancing PATH to include DevKit...
Building native extensions with: '--with-opt-dir=c:/ImageMagick64'
This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
c:/Ruby200-x64/bin/ruby.exe extconf.rb --with-opt-dir=c:/ImageMagick64
checking for Ruby version >= 1.8.5... 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
--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=c:/Ruby200-x64/bin/ruby
c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:430:in `try_do': The compiler failed to ge
nerate an executable file. (RuntimeError)
You have to install development tools first.
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:561:in `try_cpp'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1040:in `block in have_header
'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:891:in `block in checking_for
'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:336:in `block (2 levels) in p
ostpone'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:306:in `open'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:336:in `block in postpone'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:306:in `open'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:332:in `postpone'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:890:in `checking_for'
from c:/Ruby200-x64/lib/ruby/2.0.0/mkmf.rb:1039:in `have_header'
from extconf.rb:194:in `<main>'
Gem files will remain installed in c:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rmagi
ck-2.13.2 for inspection.
Results logged to c:/Ruby200-x64/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2/ext/RMa
gick/gem_make.out
However, when I use the 32 bit version, the mkmf.log file gives me an error for both CORE_RL_magick_.lib AND X11.lib (incompatible version). When I use the 64 bit version, I only get an error on X11.lib.
This leads me to believe that the X11.lib is bad, maybe a 32 bit version included with their distribution.
My mkmf.log file is as follows:
checking for Ruby version >= 1.8.5... -------------------- yes
--------------------
"x86_64-w64-mingw32-gcc -o conftest.exe -Ic:/Ruby200-x64/include/ruby-2.0.0/x64-mingw32 -Ic:/Ruby200-x64/include/ruby-2.0.0/ruby/backward -Ic:/Ruby200-x64/include/ruby-2.0.0 -I. -Ic:/ImageMagick64/include -DFD_SETSIZE=2048 -D_WIN32_WINNT=0x0501 -D_FILE_OFFSET_BITS=64 -O3 -fno-omit-frame-pointer -fno-fast-math -g -Wall -Wextra -Wno-unused-parameter -Wno-parentheses -Wno-long-long -Wno-missing-field-initializers -Wunused-variable -Wpointer-arith -Wwrite-strings -Wdeclaration-after-statement -Wimplicit-function-declaration conftest.c -L. -Lc:/Ruby200-x64/lib -Lc:/ImageMagick64/lib -L. -lCORE_RL_magick_ -lX11 -lx64-msvcrt-ruby200 -lshell32 -lws2_32 -limagehlp -lshlwapi "
c:/ruby200-x64/rubydevkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick64/lib/X11.lib when searching for -lX11
c:/ruby200-x64/rubydevkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick64/lib/X11.lib when searching for -lX11
c:/ruby200-x64/rubydevkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: skipping incompatible c:/ImageMagick64/lib\X11.lib when searching for -lX11
c:/ruby200-x64/rubydevkit/mingw/bin/../lib/gcc/x86_64-w64-mingw32/4.7.2/../../../../x86_64-w64-mingw32/bin/ld.exe: cannot find -lX11
collect2.exe: error: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"
2:
3: #include <winsock2.h>
4: #include <windows.h>
5: int main(int argc, char **argv)
6: {
7: return 0;
8: }
/* end */
I know it doesn't necessarily answer the question, but I was able to get the gem built by using the 32 bit version of ruby with the 32 bit ImageMagick library - it "Just Works"

Answer 2

Most likely you have a mismatch between versions:
Ruby x64 will only be able to compile and install rmagick x64
Ruby x86 (32 bit) will only be able to compile and install rmagick x86
Make sure that you install same version of both.