I want to tell make that it shall always use -j4
option even if I didn\'t specify it vie command line. Normally i would do this in some configuration file (i.e.
Have a read about the $(MAKEFLAGS) variable:
export MAKEFLAGS=j4
However this will likely interfere with recursive-make-based builds (not that sensible people are using recursive make anyway!), by interfering with GNU make's ability to communicate with its sub-makes.
So the more sensible approach is probably a wrapper script or an alias or shell function.