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      1 # $NetBSD: suff-use.mk,v 1.2 2022/02/09 21:09:24 rillig Exp $
      2 #
      3 # This test combines a .USE node with suffix rules, trying to add an
      4 # additional command before and after successful compilation of a .c file.
      5 #
      6 # History:
      7 #	make-2001.11.12.21.58.18
      8 #	| : 'Making demo.c out of nothing'
      9 #	| make: don't know how to make demo.o. Stop
     10 #	|
     11 #	| make: stopped in <curdir>
     12 #	| exit status 2
     13 #	make-2007.10.11.21.19.28
     14 #
     15 #	make-2014.08.23.15.05.40
     16 #	| : 'Making demo.c out of nothing'
     17 #	| : 'Compiling demo.c to demo.o'
     18 #	| exit status 0
     19 #	make-2014.09.05.06.57.20
     20 #
     21 #	make-2014.09.07.20.55.34
     22 #	| : 'Making demo.c out of nothing'
     23 #	| make: don't know how to make demo.o. Stop
     24 #	|
     25 #	| make: stopped in <curdir>
     26 #	| exit status 2
     27 #	...
     28 #
     29 # See also:
     30 #	https://gnats.netbsd.org/20993
     31 
     32 
     33 .SUFFIXES: .c .o
     34 
     35 all: demo.o
     36 
     37 .c.o:
     38 	: 'Compiling ${.IMPSRC} to ${.TARGET}'
     39 
     40 demo.c:
     41 	: 'Making ${.TARGET} out of nothing'
     42 
     43 using-before: .USEBEFORE
     44 	: 'Before making ${.TARGET} from ${.ALLSRCS}'
     45 
     46 using-after: .USE
     47 	: 'After making ${.TARGET} from ${.ALLSRCS}'
     48 
     49 # expect: make: don't know how to make demo.o (continuing)
     50 .c.o: using-before using-after
     51