1# $NetBSD: varname-dot-make-pid.mk,v 1.3 2022/01/23 21:48:59 rillig Exp $ 2# 3# Tests for the special .MAKE.PID variable, which contains the process ID of 4# the make process itself. 5 6# The process ID must be a positive integer. 7.if ${.MAKE.PID:C,[0-9],,g} != "" 8. error 9.elif !(${.MAKE.PID} > 0) 10. error 11.endif 12 13# Ensure that the process exists. 14_!= kill -0 ${.MAKE.PID} 15 16all: .PHONY 17