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directive-export-literal.mk revision 1.8 
      1 # $NetBSD: directive-export-literal.mk,v 1.8 2024/06/01 18:44:05 rillig Exp $
      2 #
      3 # Tests for the .export-literal directive, which exports a variable value
      4 # without expanding it.
      5 
      6 UT_VAR=		value with ${UNEXPANDED} expression
      7 
      8 .export-literal UT_VAR
      9 
     10 .export-literal			# oops: missing argument
     11 
     12 # After a variable whose value does not contain a '$' is exported, a following
     13 # .export-literal can be skipped, to avoid a setenv call, which may leak
     14 # memory on some platforms.
     15 UT_TWICE_LITERAL=	value literal
     16 .export UT_TWICE_LITERAL
     17 .export-literal UT_TWICE_LITERAL
     18 
     19 # XXX: After an .export, an .export-literal has no effect, even when the
     20 # variable value contains a '$'.
     21 UT_TWICE_EXPR=		value ${indirect:L}
     22 .export UT_TWICE_EXPR
     23 .export-literal UT_TWICE_EXPR
     24 
     25 # After an .export, an .unexport resets the variable's exported state,
     26 # re-enabling a later .export-literal.
     27 UT_TWICE_EXPR_UNEXPORT=	value ${indirect:L}
     28 .export UT_TWICE_EXPR_UNEXPORT
     29 .unexport UT_TWICE_EXPR_UNEXPORT
     30 .export-literal UT_TWICE_EXPR_UNEXPORT
     31 
     32 all:
     33 	@echo "$$UT_VAR"
     34 	@echo "$$UT_TWICE_LITERAL"
     35 	@echo "$$UT_TWICE_EXPR"
     36 	@echo "$$UT_TWICE_EXPR_UNEXPORT"
     37