bin/144388: different behavior of make(1) between command line argument and .MAKEFLAGS special target

[Jui-Nan Lin]

>Number:         144388
>Category:       bin
>Synopsis:       different behavior of make(1) between command line argument and .MAKEFLAGS special target
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Mar 01 12:10:04 UTC 2010
>Closed-Date:
>Last-Modified:
>Originator:     Jui-Nan Lin
>Release:        FreeBSD 8.0-RELEASE-p2 amd64
>Organization:
FreeBSD Taiwan
>Environment:
System: FreeBSD Florence.tamama.org 8.0-RELEASE-p2 FreeBSD 8.0-RELEASE-p2 #8: Thu Jan 7 11:34:24 CST 2010 root at Florence.tamama.org:/usr/obj/usr/src/sys/KERNEL amd64

>Description:
There's different behavior of specifying -j1 in command line argument and special target ".MAKEFLAGS"
>How-To-Repeat:

# cat Makefile
.MAKEFLAGS: -j1

all:
	@/bin/sleep 10 &
	@/bin/sleep 10 &
	@wait
# time make
0.000u 0.006s 0:00.01 0.0%      0+0k 0+0io 0pf+0w
# time make -j1
0.000u 0.006s 0:10.00 0.0%      0+0k 0+0io 0pf+0w
>Fix:
The behavior should be the same. (running for 10 seconds)


>Release-Note:
>Audit-Trail:
>Unformatted: