1 1.6 rillig # $NetBSD: depsrc-usebefore.mk,v 1.6 2020/11/15 20:20:58 rillig Exp $ 2 1.1 rillig # 3 1.3 rillig # Tests for the special source .USEBEFORE in dependency declarations, 4 1.3 rillig # which allows to prepend common commands to other targets. 5 1.6 rillig # 6 1.6 rillig # See also: 7 1.6 rillig # .USE 8 1.6 rillig # depsrc-use.mk 9 1.1 rillig 10 1.3 rillig all: action directly 11 1.1 rillig 12 1.3 rillig first: .USEBEFORE 13 1.5 rillig @echo first 1 # Using ${.TARGET} here would expand to "action" 14 1.5 rillig @echo first 2 # Using ${.TARGET} here would expand to "action" 15 1.3 rillig 16 1.3 rillig second: .USEBEFORE 17 1.5 rillig @echo second 1 18 1.5 rillig @echo second 2 19 1.3 rillig 20 1.5 rillig # It is possible but uncommon to have a .USEBEFORE target with no commands. 21 1.4 rillig # This may happen as the result of expanding a .for loop. 22 1.3 rillig empty: .USEBEFORE 23 1.3 rillig 24 1.5 rillig # It is possible but uncommon to directly make a .USEBEFORE target. 25 1.3 rillig directly: .USEBEFORE 26 1.3 rillig @echo directly 27 1.3 rillig 28 1.3 rillig action: second first empty 29