[oso2k]

Lots of other good Makefile `help` target suggestions here.

   https://gist.github.com/prwhite/8168133

My favorite is (since it only depends on a recent bash):

   SHELL:=/bin/bash
   .PHONY: help help_target-funky+names.0k and_with_2_targets_and_spaces_like_bison
   help_target-funky+names.0k and_with_2_targets_and_spaces_like_bison: ## Funky ones & bison dual target display ok
           echo "bad - why are you not displaying?"
   help: ## bash help
   help: ## moar bash help
           @RE='^[a-zA-Z0-9 ._+-]*:[a-zA-Z0-9 ._+-]*##' ; while read line ; do [[ "$$line" =~ $$RE ]] && echo "$$line" ; done <$(MAKEFILE_LIST) ; RE=''