mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 10:19:04 +00:00
cdde9e894d
Features of interest: Allow setting target local variables (similar to gmake) In META_MODE .MAKE.META.CMP_FILTER can be used for filtering commands before comparion. contrib/bmake/mk/cc-wrap.mk is an example of using these See ChangeLog for the gory details.
24 lines
654 B
Makefile
24 lines
654 B
Makefile
# $NetBSD: varname-dot-make-ppid.mk,v 1.3 2022/01/23 21:48:59 rillig Exp $
|
|
#
|
|
# Tests for the special .MAKE.PPID variable, which contains the process ID of
|
|
# make's parent process.
|
|
|
|
# The parent process ID must be a positive integer.
|
|
.if ${.MAKE.PPID:C,[0-9],,g} != ""
|
|
. error
|
|
.elif !(${.MAKE.PPID} > 0)
|
|
. error
|
|
.endif
|
|
|
|
# Ensure that the process exists.
|
|
_!= kill -0 ${.MAKE.PPID}
|
|
|
|
# The parent process ID must be different from the process ID. If they were
|
|
# the same, make would run as process 1, which is not a good idea because make
|
|
# is not prepared to clean up after other processes.
|
|
.if ${.MAKE.PPID} == ${.MAKE.PID}
|
|
. error
|
|
.endif
|
|
|
|
all: .PHONY
|