Does RMagick have to be compiled with a C compiler?
It depends. • No, if you’re installing on Microsoft Windows using the rmagick-win32 gem. • No, if you’re installing on Linux, *BSD, or OS X using a pre-compiled binary package. • Yes, if you’re installing on Linux, *BSD, Cygwin, or OS X using the rmagick gem. • Yes, if you’re installing on Linux, *BSD, Cygwin, or OS X using the RMagick source tarball.