Homebrew Formula for a patched version of AVRdude to support auto-resetting Arduino boards for ArduinoISP programming (patch based on a suggestion from http://www.arduino.cc/playground/Code/MegaISP)

inodude.rb

require 'formula'

class Inodude < Formula
  url 'http://download.savannah.gnu.org/releases/avrdude/avrdude-5.11.1.tar.gz'
  homepage 'http://savannah.nongnu.org/projects/avrdude/'
  md5 '3a43e288cb32916703b6945e3f260df9'

  depends_on 'libusb-compat' if ARGV.include? '--with-usb'
  
  def patches
    DATA
  end

  def options
    [['--with-usb', 'Compile AVRDUDE with USB support.']]
  end

  def install
    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}", "--program-transform-name=s/avrdude/inodude/"
    system "make"
    system "make install"
  end
end

__END__
diff --git a/ser_posix.c b/ser_posix.c
index 2c9e84b..ab184f1 100644
--- a/ser_posix.c
+++ b/ser_posix.c
@@ -284,6 +284,7 @@ static int ser_open(char * port, long baud, union filedescriptor *fdp)
     close(fd);
     return -1;
   }
+  sleep(4);
   return 0;
 }