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      1 # $NetBSD: opt-no-action.mk,v 1.4 2020/11/09 20:50:56 rillig Exp $
      2 #
      3 # Tests for the -n command line option, which runs almost no commands.
      4 # It just outputs them, to be inspected by human readers.
      5 # Only commands that are in a .MAKE target or prefixed by '+' are run.
      6 
      7 .MAKEFLAGS: -n
      8 
      9 # This command cannot be prevented from being run since it is used at parse
     10 # time, and any later variable assignments may depend on its result.
     11 !=	echo 'command during parsing' 1>&2; echo
     12 
     13 all: main
     14 all: run-always
     15 
     16 # Both of these commands are printed, but only the '+' command is run.
     17 .BEGIN:
     18 	@echo '$@: hidden command'
     19 	@+echo '$@: run always'
     20 
     21 # Both of these commands are printed, but only the '+' command is run.
     22 main:
     23 	@echo '$@: hidden command'
     24 	@+echo '$@: run always'
     25 
     26 # None of these commands is printed, but both are run, because this target
     27 # depends on the special source ".MAKE".
     28 run-always: .MAKE
     29 	@echo '$@: hidden command'
     30 	@+echo '$@: run always'
     31 
     32 # Both of these commands are printed, but only the '+' command is run.
     33 .END:
     34 	@echo '$@: hidden command'
     35 	@+echo '$@: run always'
     36