1# $NetBSD: varmod-match-escape.mk,v 1.1 2020/08/16 20:03:53 rillig Exp $
2#
3# As of 2020-08-01, the :M and :N modifiers interpret backslashes differently,
4# depending on whether there was a variable expression somewhere before the
5# first backslash or not.  See ApplyModifier_Match, "copy = TRUE".
6#
7# Apart from the different and possibly confusing debug output, there is no
8# difference in behavior.  When parsing the modifier text, only \{, \} and \:
9# are unescaped, and in the pattern matching these have the same meaning as
10# their plain variants '{', '}' and ':'.  In the pattern matching from
11# Str_Match, only \*, \? or \[ would make a noticeable difference.
12SPECIALS=	\: : \\ * \*
13RELEVANT=	yes
14.if ${SPECIALS:M${:U}\:} != ${SPECIALS:M\:${:U}}
15.warning unexpected
16.endif
17RELEVANT=	no
18
19all:
20	@:;
21