"rmagick" gem installation issue
This ImageMagick 7 with RMagick 2.16 on MacOS Sierra Can't find MagickWand.h works for Rmagick 2.16.
brew install imagemagick@6brew link --force imagemagick@6gem install rmagick
The error message says:
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 variableNo package 'MagickCore' foundIt seems you missing no package at all, you just have to tell pkg-config where to find the MagickCore.pc file to build the extension. If you have installed the package ImageMagick-devel using yum the file should be inside the directory /usr/lib/pkgconfig or /usr/lib64/pkgconfig (depending on your architecture). Check with this command (from now I assume you are on a amd64 machine, if it's not the case replace lib64 with lib):
$ find /usr/lib64/pkgconfig -name MagickCore.pcIf the file is there you just have to install rmagick with this command:
$ PKG_CONFIG_PATH='/usr/lib64/pkgconfig' gem install rmagick