Marlin Firmware troubles:  error
From Gerben's link to the googlegroups's thread, Delta robot 3D printers › compiling jcrocholl's Marlin (Ubuntu), as Francis Mallet points out, at the bottom of the thread, it is necessary to change &lt;time.h&gt; to "Time.h":


  I copied the content of the Time library right in the Marlin folder, then changed line 7 of qr_solve.cpp from #include  to #include "Time.h" 
  
  The code compiled and everything seems to be working ok.


So, to iterate, the line in qr_solve.cpp:

#include &lt;time.h&gt;


becomes

#include "Time.h"


Now, Marlin.ino should compile as expected.

Note that the latest version of Marlin, from github.com/MarlinFirmware/Marlin no longer suffers from this issue, but older versions of the software, such as github.com/gpfwestie/kossel_2020_sintron will do, due to line 7, in qr_solve.cpp.