title: Arduino compile error of U8glib library on Win 10
body: <p>Trying to compile Marlin firmware with U8Glib LCD library to upload to my ATMega 2560, this is the error I got:</p>
  
  <blockquote>
    <p>Using library U8glib at version 1.19.1 in folder: C:\Program Files (x86)\Arduino\libraries\U8glib  fork/exec C:\Program Files
    (x86)\Arduino\hardware\tools\avr/bin/avr-gcc.exe: The filename or
    extension is too long. Error compiling for board Arduino/Genuino Mega
    or Mega 2560.</p>
  </blockquote>
  
  <p>I have successfully compiled and uploaded before, this is happening only after setting a change to incorporate U8Glib. I have tried installing it manually, from the IDE, no change.</p>