Use -j`nproc` instead of -j4
Use -j`nproc` instead of -j4

Using -j`nproc`` rather than -j4 allows scaling based on the number of processors available.  nproc is provided in the coreutils package.
OLIMEX/DIY-LAPTOP,OLIMEX/DIY-LAPTOP,OLIMEX/DIY-LAPTOP,OLIMEX/DIY-LAPTOP,OLIMEX/DIY-LAPTOP,OLIMEX/DIY-LAPTOP