bash-it/completion/available/makefile.completion.bash

# Add completion for Makefile
# see http://stackoverflow.com/a/38415982/1472048
complete -W "\`grep -oE '^[a-zA-Z0-9_-]+:([^=]|$)' Makefile | sed 's/[^a-zA-Z0-9_-]*$//'\`" make
	`# Add completion for Makefile`
	`# see http://stackoverflow.com/a/38415982/1472048`
	complete -W "\`grep -oE '^[a-zA-Z0-9_-]+:([^=]\|$)' Makefile \| sed 's/[^a-zA-Z0-9_-]*$//'\`" make