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suff.mk revision 1.2 
      1 # $NetBSD: suff.mk,v 1.2 2025/01/12 23:10:30 rillig Exp $
      2 #
      3 # Demonstrate suffix rules and dependency resolution.
      4 
      5 
      6 # Circumvent the file system cache.
      7 .if !make(init) && !make(step*)
      8 all:
      9 	@${MAKE} -f ${MAKEFILE} init
     10 	@${MAKE} -f ${MAKEFILE} step1
     11 .endif
     12 
     13 
     14 .if make(init)
     15 init:
     16 .  if ${.PARSEDIR:tA} != ${.CURDIR:tA}
     17 ${:U}!=		cd ${MAKEFILE:H} && cp a*.mk ${.CURDIR}
     18 .  endif
     19 .endif
     20 
     21 
     22 .if make(step1)
     23 step1: .PHONY edge-case.to everything
     24 
     25 .MAKEFLAGS: -dsv
     26 
     27 .SUFFIXES: .from .to
     28 
     29 .from.to:
     30 	: Making ${.TARGET} from ${.ALLSRC}.
     31 
     32 # When making this target, ${.ARCHIVE} is undefined, but there's no warning.
     33 # expect: Var_Parse: ${.ARCHIVE}.additional (eval-defined)
     34 edge-case.to: ${.PREFIX}${.ARCHIVE}.additional
     35 
     36 edge-case.from edge-case.additional:
     37 	: Making ${.TARGET} out of nothing.
     38 
     39 everything: .PHONY a*.mk
     40 	: Making ${.TARGET} from ${.ALLSRC}.
     41 .endif
     42