GNU Make 在什么条件下改变堆栈大小，为什么？

Question

考虑这个makefile：

.PHONY: all

all: dummy test
    ulimit -s

include dummy

dummy: test
    touch dummy

当我运行它时，我得到：

$ make -v
GNU Make 4.1
Built for x86_64-pc-linux-gnu
Copyright (C) 1988-2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
$ touch test; make
touch dummy
ulimit -s
unlimited

但是，如果我删除include dummy 或将touch dummy 替换为true，那么ulimit -s 将提供8192。怎么回事？

Answer 1

这是bug 48009，已在 GNU make 4.2.1 中修复。