问题
I have seen other people with the same issue of installing RMagick on Mountain Lion However none of the suggested solutions have allowed me to successfully install rmagick.
Here is the error message I am getting:
Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension.
checking for Ruby version >= 1.8.5... yes
checking for /usr/local/bin/gcc-4.2... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... yes
checking for InitializeMagick() in -lMagickCore... no
checking for InitializeMagick() in -lMagick... no
checking for InitializeMagick() in -lMagick++... no
Can't install RMagick 2.13.1. Can't find the ImageMagick library or one of the dependent libraries. Check the mkmf.log file for more detailed information.
*** 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.
Things I have done:
Installed XCode
Installed the command line tools
Installed XQuartz
Installed homebrew with imagemagick library
Installed most recent version of RVM
Symlinked GCC
Uninstalled and reinstalled both RVM and imagemagick
Any ideas why I still can't download rmagick?
回答1:
It appears it's a problem reported on the Homebrew github repo (https://github.com/mxcl/homebrew/issues/16625) blaming rmagick itself not supporting newer versions of imagemagick. On that same issue (https://github.com/mxcl/homebrew/issues/16625#issuecomment-11519383), you can find this link: https://coderwall.com/p/wnomjg which actually worked for me. This is what he does:
cd /usr/local/Cellar/imagemagick/6.8.0-10/lib
ln -s libMagick++-Q16.7.dylib libMagick++.dylib
ln -s libMagickCore-Q16.7.dylib libMagickCore.dylib
ln -s libMagickWand-Q16.7.dylib libMagickWand.dylib
Hope this helps.
回答2:
The latest version of rmagick (2.13.2) now supports imagemagick 6.8
- https://github.com/rmagick/rmagick/pull/63
- http://github.com/rmagick/rmagick/blob/master/ChangeLog
- http://singlebrook.com/blog/rmagick-resurrected
回答3:
What we did was the following:
cd /usr/local
git checkout 834ce4a Library/Formula/imagemagick.rb
brew install imagemagick
This will install Imagemagick 6.7.7-6
回答4:
I know this is old, but I have been through a bunch of these responses and still wasn't able to get it to work. I found a random link in another language which actually solved the problem for me (http://sugiarto.webmuapp.com/Package_MagickCore_was_not_found_in_the_pkg_config_search_path). It looks like it was looking for PKG_CONFIG_PATH which was not set up.
What worked for me:
export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig
Then make sure it worked:
find /usr -name 'MagickCore.pc'
/usr/local/Cellar/imagemagick/6.8.0-10/lib/pkgconfig/MagickCore.pc
/usr/local/lib/pkgconfig/MagickCore.pc
Then try installing rmagick again:
gem install rmagick
Building native extensions. This could take a while...
Successfully installed rmagick-2.13.2
1 gem installed
Installing ri documentation for rmagick-2.13.2...
Installing RDoc documentation for rmagick-2.13.2...
Success! Hope this helps anyone else still running into this issue.
回答5:
From other answers:
PKG_CONFIG_PATH=/usr/local/Cellar/imagemagick/6.8.0-10/lib/pkgconfig C_INCLUDE_PATH=/usr/local/Cellar/imagemagick/6.8.0-10/include/ImageMagick gem install rmagick -v '2.13.1'
See https://stackoverflow.com/a/10645011/1197775 to know how to get these dirs.
回答6:
Here is what worked for me on macOS Sierra.
brew uninstall pkg-config
brew install pkg-config
brew unlink pkg-config
brew link pkg-config
回答7:
I know this is a pretty old issue but it did happen to me recently. I am posting this for those that have tried all other answers and weren't able to resolve so far. Bumping the rmagick gem to version 2.13.4 has worked with Ruby 1.9.3 on MacOS.
Hope it helps!
回答8:
check my answer to openssl problem https://stackoverflow.com/a/13958931/497756 - just make sure that imagemagick was compiled including *.pc files - which is the default for most software but not all of it.
来源：https://stackoverflow.com/questions/13942443/error-installing-rmagick-on-mountain-lion