LoginSignup
45
25

More than 5 years have passed since last update.

@niwasawa

macOS に RMagick をインストールする

Last updated at Posted at 2017-04-18

Mac に RMagick をインストールする

Homebrew で ImageMagick 6 と pkg-config をインストールした後、

環境変数 PKG_CONFIG_PATH を指定して、 gem コマンドで rmagick をインストールする。

$ brew install imagemagick@6
$ brew install pkg-config
$ export PKG_CONFIG_PATH=/usr/local/opt/imagemagick@6/lib/pkgconfig
$ gem install rmagick

今回の動作確認環境

macOS Sierra + Ruby 2.4.0

$ sw_vers
ProductName:    Mac OS X
ProductVersion: 10.12.4
BuildVersion:   16E195

$ ruby -v
ruby 2.4.0p0 (2016-12-24 revision 57164) [x86_64-darwin16]

$ /usr/local/opt/imagemagick@6/bin/convert --version
Version: ImageMagick 6.9.8-3 Q16 x86_64 2017-03-25 http://www.imagemagick.org
Copyright: © 1999-2017 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC Modules 
Delegates (built-in): bzlib freetype jng jpeg ltdl lzma png tiff xml zlib

$ gem list | grep rmagick
rmagick (2.16.0)

インストールに失敗するパターン

ImageMagick 7 がインストールされている

現時点では RMagick は ImageMagick の最新バージョンである7系に対応していない。

ImageMagick が7系の場合、以下のように MagickWand.h が見つからないというエラーが発生する。

$ gem install rmagick
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

    current directory: /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0/ext/RMagick
/Users/yourname/.rbenv/versions/2.4.0/bin/ruby -r ./siteconf20170418-43189-1kycjl8.rb extconf.rb
checking for clang... yes
checking for Magick-config... no
checking for pkg-config... yes
checking for outdated ImageMagick version (<= 6.4.9)... no
checking for presence of MagickWand API (ImageMagick version >= 6.9.0)... no
checking for Ruby version >= 1.8.5... yes
checking for stdint.h... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... no

Can't install RMagick 2.16.0. Can't find MagickWand.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=/Users/yourname/.rbenv/versions/2.4.0/bin/$(RUBY_BASE_NAME)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0 for inspection.
Results logged to /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/gem_make.out

このエラーは ImageMagick 7 をアンインストールして、

$ brew uninstall imagemagick

ImageMagick 6 をインストールすることで解決する。

$ brew install imagemagick@6
==> Downloading https://homebrew.bintray.com/bottles/imagemagick@6-6.9.8-3.sierra.bottle.tar.gz
Already downloaded: /Users/yourname/Library/Caches/Homebrew/imagemagick@6-6.9.8-3.sierra.bottle.tar.gz
==> Pouring imagemagick@6-6.9.8-3.sierra.bottle.tar.gz
==> Caveats
This formula is keg-only, which means it was not symlinked into /usr/local.

This is an alternate version of another formula.

If you need to have this software first in your PATH run:
  echo 'export PATH="/usr/local/opt/imagemagick@6/bin:$PATH"' >> ~/.bash_profile

For compilers to find this software you may need to set:
    LDFLAGS:  -L/usr/local/opt/imagemagick@6/lib
    CPPFLAGS: -I/usr/local/opt/imagemagick@6/include

==> Summary
🍺  /usr/local/Cellar/imagemagick@6/6.9.8-3: 1,469 files, 22.6MB

convert などの ImageMagick のコマンドを使うのであれば、~/.bash_profile などでパスを追加しておく。

$ echo 'export PATH="/usr/local/opt/imagemagick@6/bin:$PATH"' >> ~/.bash_profile

$ source ~/.bash_profile 

$ convert --version
Version: ImageMagick 6.9.8-3 Q16 x86_64 2017-03-25 http://www.imagemagick.org
Copyright: © 1999-2017 ImageMagick Studio LLC
License: http://www.imagemagick.org/script/license.php
Features: Cipher DPC Modules 
Delegates (built-in): bzlib freetype jng jpeg ltdl lzma png tiff xml zlib

pkg-config がインストールされていない

pkg-config が無い場合は、以下のように pkg-config が見つからないというエラーが発生する。

$ gem install rmagick
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

    current directory: /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0/ext/RMagick
/Users/yourname/.rbenv/versions/2.4.0/bin/ruby -r ./siteconf20170418-48774-fs17k4.rb extconf.rb
checking for clang... yes
checking for Magick-config... no
checking for pkg-config... no
Can't install RMagick 2.16.0. Can't find Magick-config or pkg-config in /Users/yourname/.rbenv/versions/2.4.0/bin:/usr/local/Cellar/rbenv/1.1.0/libexec:/Users/yourname/.rbenv/shims:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin

*** 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=/Users/yourname/.rbenv/versions/2.4.0/bin/$(RUBY_BASE_NAME)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0 for inspection.
Results logged to /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/gem_make.out

pkg-config をインストールすれば解決する。

$ brew install pkg-config

環境変数 PKG_CONFIG_PATH が設定されていない

PKG_CONFIG_PATH が設定されていない場合は、以下のようなエラーが発生する。

$ gem install rmagick
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

    current directory: /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0/ext/RMagick
/Users/yourname/.rbenv/versions/2.4.0/bin/ruby -r ./siteconf20170418-43866-9wvfhr.rb extconf.rb
checking for clang... yes
checking for Magick-config... no
checking for pkg-config... yes
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
checking for outdated ImageMagick version (<= 6.4.9)... *** 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=/Users/yourname/.rbenv/versions/2.4.0/bin/$(RUBY_BASE_NAME)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/gems/rmagick-2.16.0 for inspection.
Results logged to /Users/yourname/.rbenv/versions/2.4.0/lib/ruby/gems/2.4.0/extensions/x86_64-darwin-16/2.4.0-static/rmagick-2.16.0/gem_make.out

環境変数 PKG_CONFIG_PATH を設定して、rmagick をインストールすれば解決する。

$ export PKG_CONFIG_PATH=/usr/local/opt/imagemagick@6/lib/pkgconfig

$ gem install rmagick
Building native extensions.  This could take a while...
Successfully installed rmagick-2.16.0
Parsing documentation for rmagick-2.16.0
Installing ri documentation for rmagick-2.16.0
Done installing documentation for rmagick after 2 seconds
1 gem installed
45
25
0

Register as a new user and use Qiita more conveniently

  1. You get articles that match your needs
  2. You can efficiently read back useful information
  3. You can use dark theme
What you can do with signing up
Sign upLogin
45
25