1. [phung@localhost hello]$ make clean
  2. Variable 'OPTIMSOC' not defined in '/home/phung/Documents/Grive/Personal/Digital/OpenRISC/OpTiMSoC/2016.1/soc/sw/share/pkgconfig/optimsoc-baremetal.pc'
  3. Makefile:27: /Makefile.inc: No such file or directory
  4. make: *** No rule to make target '/Makefile.inc'. Stop.