1# $NetBSD: cond-func-exists.mk,v 1.4 2020/08/28 12:59:36 rillig Exp $ 2# 3# Tests for the exists() function in .if conditions. 4 5.if !exists(.) 6.error 7.endif 8 9# The argument to the function must not be enclosed in quotes. 10# Neither double quotes nor single quotes are allowed. 11.if exists(".") 12.error 13.endif 14 15.if exists('.') 16.error 17.endif 18 19# The only way to escape characters that would otherwise influence the parser 20# is to enclose them in a variable expression. For function arguments, 21# neither the backslash nor the dollar sign act as escape character. 22.if exists(\.) 23.error 24.endif 25 26.if !exists(${:U.}) 27.error 28.endif 29 30# The argument to the function can have several variable expressions. 31# See cond-func.mk for the characters that cannot be used directly. 32.if !exists(${.PARSEDIR}/${.PARSEFILE}) 33.error 34.endif 35 36# Whitespace is trimmed on both sides of the function argument. 37.if !exists( . ) 38.error 39.endif 40 41all: 42 @:; 43