nocorica

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gem install opencv

C:\>gem install opencv
Fetching: opencv-0.0.7.gem (100%)
Building native extensions.  This could take a while...
ERROR:  Error installing opencv:
        ERROR: Failed to build gem native extension.

    C:/Ruby193/bin/ruby.exe extconf.rb
>> check require libraries...
checking for main() in -lcxcore... no
*** 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:/Ruby193/bin/ruby
        --with-opencv-dir
        --without-opencv-dir
        --with-opencv-include
        --without-opencv-include=${opencv-dir}/include
        --with-opencv-lib
        --without-opencv-lib=${opencv-dir}/lib
        --with-ffcall-dir
        --without-ffcall-dir
        --with-ffcall-include
        --without-ffcall-include=${ffcall-dir}/include
        --with-ffcall-lib
        --without-ffcall-lib=${ffcall-dir}/lib
        --with-cxcorelib
        --without-cxcorelib
extconf.rb:32:in `block in <main>': libcxcore not found. (RuntimeError)
        from extconf.rb:31:in `each'
        from extconf.rb:31:in `<main>'


Gem files will remain installed in C:/Ruby193/lib/ruby/gems/1.9.1/gems/opencv-0.0.7 for inspection.
Results logged to C:/Ruby193/lib/ruby/gems/1.9.1/gems/opencv-0.0.7/ext/gem_make.out

gem_make.out

C:/Ruby193/bin/ruby.exe extconf.rb
>> check require libraries...
checking for main() in -lcxcore... no
*** 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:/Ruby193/bin/ruby
  --with-opencv-dir
  --without-opencv-dir
  --with-opencv-include
  --without-opencv-include=${opencv-dir}/include
  --with-opencv-lib
  --without-opencv-lib=${opencv-dir}/lib
  --with-ffcall-dir
  --without-ffcall-dir
  --with-ffcall-include
  --without-ffcall-include=${ffcall-dir}/include
  --with-ffcall-lib
  --without-ffcall-lib=${ffcall-dir}/lib
  --with-cxcorelib
  --without-cxcorelib
extconf.rb:32:in `block in <main>': libcxcore not found. (RuntimeError)
  from extconf.rb:31:in `each'
  from extconf.rb:31:in `<main>'