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directive-unexport.mk revision 1.8 
      1 # $NetBSD: directive-unexport.mk,v 1.8 2023/06/01 20:56:35 rillig Exp $
      2 #
      3 # Tests for the .unexport directive.
      4 #
      5 # Before 2020-12-13, misspelled directives like ".unexporting" or
      6 # ".unexport-en" had not been detected properly.
      7 #
      8 # See also:
      9 #	directive-misspellings.mk
     10 
     11 # First, export 3 variables.
     12 UT_A=	a
     13 UT_B=	b
     14 UT_C=	c
     15 .export UT_A UT_B UT_C
     16 
     17 # Show the exported variables and their values.
     18 # expect+1: UT_A=a UT_B=b UT_C=c
     19 .info ${:!env|sort|grep '^UT_'!}
     20 # expect+1: UT_A UT_B UT_C
     21 .info ${.MAKE.EXPORTED}
     22 
     23 # XXX: Now try to unexport all of them.  The variables are still exported
     24 # but not mentioned in .MAKE.EXPORTED anymore.
     25 # See the ":N" in Var_UnExport for the implementation.
     26 *=	asterisk
     27 .unexport *
     28 
     29 # expect+1: UT_A=a UT_B=b UT_C=c
     30 .info ${:!env|sort|grep '^UT_'!}
     31 .info ${.MAKE.EXPORTED}
     32 
     33 .unexport			# oops: missing argument
     34 
     35 all:
     36 	@:;
     37