regress/make-quoting/files/quoting.mk

   1 # $NetBSD: quoting.mk,v 1.1.1.1 2005/05/15 21:10:16 rillig Exp $
   2 #
   3 # This file demonstrates various techniques for quoting variables when
   4 # passing them to the shell.
   5 #
   6 # The third line revealed a bug in the NetBSD 3.0 shell, which discards
   7 # the last argument under some circumstances when it is empty.
   8 #
   9
  10 EVIL_STRING?=   "   "
  11
  12 .PHONY: all
  13 all:
  14         echo ${EVIL_STRING}
  15         echo ${EVIL_STRING:Q}
  16         echo "${EVIL_STRING}"
  17         echo "${EVIL_STRING:Q}"
  18         echo ${EVIL_STRING:Q}""
  19         echo x${EVIL_STRING:Q} | sed 1s,.,,