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      1 # $NetBSD: unexport-env.mk,v 1.4 2020/10/24 08:50:17 rillig Exp $
      2 
      3 # pick up a bunch of exported vars
      4 FILTER_CMD=	grep ^UT_
      5 .include "export.mk"
      6 
      7 # an example of setting up a minimal environment.
      8 PATH=	/bin:/usr/bin:/sbin:/usr/sbin
      9 
     10 # now clobber the environment to just PATH and UT_TEST
     11 UT_TEST=	unexport-env
     12 
     13 # this removes everything
     14 .unexport-env
     15 .export PATH UT_TEST
     16