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depsrc-use.mk revision 1.5 
      1  1.5  rillig # $NetBSD: depsrc-use.mk,v 1.5 2021/12/28 14:22:51 rillig Exp $
      2  1.1  rillig #
      3  1.3  rillig # Tests for the special source .USE in dependency declarations,
      4  1.3  rillig # which allows to append common commands to other targets.
      5  1.1  rillig 
      6  1.5  rillig # Before make.h 1.280 from 2021-12-28, a .USEBEFORE target was accidentally
      7  1.5  rillig # regarded as a candidate for the main target.  On the other hand, a .USE
      8  1.5  rillig # target was not.
      9  1.5  rillig not-a-main-candidate: .USE
     10  1.5  rillig 
     11  1.3  rillig all: action directly
     12  1.1  rillig 
     13  1.3  rillig first: .USE
     14  1.4  rillig 	@echo first 1		# Using ${.TARGET} here would expand to "action"
     15  1.4  rillig 	@echo first 2
     16  1.3  rillig 
     17  1.3  rillig second: .USE
     18  1.4  rillig 	@echo second 1
     19  1.4  rillig 	@echo second 2
     20  1.3  rillig 
     21  1.3  rillig # It's possible but uncommon to have a .USE target with no commands.
     22  1.3  rillig # This may happen as the result of expanding a .for loop.
     23  1.3  rillig empty: .USE
     24  1.3  rillig 
     25  1.3  rillig # It's possible but uncommon to directly make a .USEBEFORE target.
     26  1.3  rillig directly: .USE
     27  1.3  rillig 	@echo directly
     28  1.3  rillig 
     29  1.3  rillig action: first second empty
     30