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opt.mk revision 1.4 
      1  1.4     sjg # $NetBSD: opt.mk,v 1.4 2020/11/15 06:06:19 sjg Exp $
      2  1.1  rillig #
      3  1.2  rillig # Tests for the command line options.
      4  1.1  rillig 
      5  1.1  rillig # TODO: Implementation
      6  1.1  rillig 
      7  1.3  rillig .MAKEFLAGS: -d0			# make stdout line-buffered
      8  1.3  rillig 
      9  1.3  rillig all: .IGNORE
     10  1.3  rillig 	# Just to see how the custom argument parsing code reacts to a syntax
     11  1.3  rillig 	# error.  The colon is used in the options string, marking an option
     12  1.3  rillig 	# that takes arguments.  It is not an option by itself, though.
     13  1.3  rillig 	${MAKE} -:
     14  1.3  rillig 	@echo
     15  1.3  rillig 
     16  1.3  rillig 	# See whether a '--' stops handling of command line options, like in
     17  1.4     sjg 	# standard getopt programs.  Yes, it does, and it treats the
     18  1.4     sjg 	# second '-f' as a target to be created.
     19  1.4     sjg 	${MAKE} -r -f /dev/null -- -VAR=value -f /dev/null
     20  1.3  rillig 	@echo
     21  1.3  rillig 
     22  1.3  rillig 	# This is the normal way to print the usage of a command.
     23  1.3  rillig 	${MAKE} -?
     24  1.3  rillig 	@echo
     25