require 'formula' class JpegTurbo < Formula homepage 'http://www.libjpeg-turbo.org/' url 'http://downloads.sourceforge.net/project/libjpeg-turbo/1.2.1/libjpeg-turbo-1.2.1.tar.gz' sha1 'a4992e102c6d88146709e8e6ce5896d5d0b5a361' depends_on 'nasm' => :build if MacOS.prefer_64_bit? keg_only "libjpeg-turbo is not linked to prevent conflicts with the standard libjpeg." def install args = ["--disable-dependency-tracking", "--prefix=#{prefix}"] if MacOS.prefer_64_bit? args << "--host=x86_64-apple-darwin" # Auto-detect our 64-bit nasm args << "NASM=#{Formula.factory('nasm').bin}/nasm" end system "./configure", *args system 'make' ENV.j1 # Stops a race condition error: file exists system "make install" end test do system "#{bin}/jpegtran", "-crop", "500x500+200+500", "-transpose", "-perfect", "-outfile", "test.jpg", "/System/Library/CoreServices/DefaultDesktop.jpg" end end