1 1.4 rillig # $NetBSD: varname-dot-shell.mk,v 1.4 2020/10/30 15:03:58 rillig Exp $ 2 1.1 rillig # 3 1.1 rillig # Tests for the special .SHELL variable, which contains the shell used for 4 1.1 rillig # running the commands. 5 1.1 rillig # 6 1.1 rillig # This variable is read-only. 7 1.1 rillig 8 1.4 rillig .MAKEFLAGS: -dcpv 9 1.4 rillig 10 1.1 rillig ORIG_SHELL:= ${.SHELL} 11 1.1 rillig 12 1.1 rillig .SHELL= overwritten 13 1.1 rillig .if ${.SHELL} != ${ORIG_SHELL} 14 1.3 rillig . error 15 1.1 rillig .endif 16 1.1 rillig 17 1.1 rillig # Trying to delete the variable. 18 1.1 rillig # This has no effect since the variable is not defined in the global context, 19 1.1 rillig # but in the command-line context. 20 1.1 rillig .undef .SHELL 21 1.1 rillig .SHELL= newly overwritten 22 1.1 rillig .if ${.SHELL} != ${ORIG_SHELL} 23 1.3 rillig . error 24 1.1 rillig .endif 25 1.1 rillig 26 1.4 rillig .MAKEFLAGS: -d0 27 1.4 rillig 28 1.1 rillig all: 29 1.4 rillig @:; 30