cond-func-defined.mk revision 1.8
11.8Srillig# $NetBSD: cond-func-defined.mk,v 1.8 2021/12/12 08:55:28 rillig Exp $ 21.1Srillig# 31.2Srillig# Tests for the defined() function in .if conditions. 41.1Srillig 51.3SrilligDEF= defined 61.3Srillig${:UA B}= variable name with spaces 71.3Srillig 81.3Srillig.if !defined(DEF) 91.5Srillig. error 101.3Srillig.endif 111.3Srillig 121.4Srillig# Horizontal whitespace (space tab) after the opening parenthesis is ignored. 131.3Srillig.if !defined( DEF) 141.5Srillig. error 151.3Srillig.endif 161.3Srillig 171.4Srillig# Horizontal whitespace (space tab) before the closing parenthesis is ignored. 181.3Srillig.if !defined(DEF ) 191.5Srillig. error 201.3Srillig.endif 211.3Srillig 221.3Srillig# The argument of a function must not directly contain whitespace. 231.3Srillig.if !defined(A B) 241.5Srillig. error 251.3Srillig.endif 261.3Srillig 271.3Srillig# If necessary, the whitespace can be generated by a variable expression. 281.3Srillig.if !defined(${:UA B}) 291.5Srillig. error 301.3Srillig.endif 311.1Srillig 321.8Srillig# Parse error: missing closing parenthesis; see ParseWord. 331.6Srillig.if defined(DEF 341.6Srillig. error 351.6Srillig.else 361.6Srillig. error 371.6Srillig.endif 381.6Srillig 391.7Srillig# Variables from .for loops are not defined. 401.7Srillig# See directive-for.mk for more details. 411.7Srillig.for var in value 421.7Srillig. if defined(var) 431.7Srillig. error 441.7Srillig. else 451.7Srillig. info In .for loops, variable expressions for the loop variables are 461.7Srillig. info substituted at evaluation time. There is no actual variable 471.7Srillig. info involved, even if it feels like it. 481.7Srillig. endif 491.7Srillig.endfor 501.7Srillig 511.1Srilligall: 521.1Srillig @:; 53