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      1 # $NetBSD: varname-make_print_var_on_error.mk,v 1.6 2021/02/04 21:33:14 rillig Exp $
      2 #
      3 # Tests for the special MAKE_PRINT_VAR_ON_ERROR variable, which prints the
      4 # values of selected variables on error.
      5 
      6 # XXX: As of 2020-10-23, the .ERROR_CMD variable is pointless in compat mode
      7 # since at the point where it is filled in PrintOnError, the first command in
      8 # gn->commands has been set to NULL already.  This leaves .ERROR_CMD an empty
      9 # list.
     10 #
     11 # See also:
     12 #	compat-error.mk
     13 
     14 # XXX: As of 2021-02-04, PrintOnError calls Var_Subst with SCOPE_GLOBAL, which
     15 # does not expand the node-local variables like .TARGET.  This results in the
     16 # double '${.TARGET}' in the output.
     17 
     18 MAKE_PRINT_VAR_ON_ERROR=	.ERROR_TARGET .ERROR_CMD
     19 
     20 all:
     21 	@: before '${.TARGET}' '$${.TARGET}' '$$$${.TARGET}'
     22 	echo fail ${.TARGET}; false '${.TARGET}' '$${.TARGET}' '$$$${.TARGET}'
     23 	@: after '${.TARGET}' '$${.TARGET}' '$$$${.TARGET}'
     24