docs/175995: Setting MALLOC_PRODUCTION stops buildworld

[Dewayne]

>Number:         175995
>Category:       docs
>Synopsis:       Setting MALLOC_PRODUCTION stops buildworld
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-doc
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          doc-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Feb 10 00:30:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Dewayne
>Release:        9.1Stable
>Organization:
>Environment:
FreeBSD hs3.hs 9.1-STABLE FreeBSD 9.1-STABLE #0: Thu Feb  7 21:38:50 EST 2013     root at hs3.hs:/usr/obj/prod/901/D/CORE2/usr/src/sys/hqdev-amd64-padlock-smp-vga  amd64

>Description:
Would it be possible to modify the man page for make.conf 

The option for MALLOC_PRODUCTION= was disabled in 2011 (revision 226405).  And if set from make.conf, the 9.1 Stable build, will stop.

cc -fpic -DPIC  -O2 -pipe -pipe -O2 -g0 -march=prescott -I/usr/src/lib/libc/include -I/usr/src/lib/libc/../../include -I/usr/src/lib/libc/i386 -DNLS  -D__DBINTERFACE_PRIVATE -I/usr/src/lib/libc/..
/usr/src/lib/libc/stdlib/malloc.c:126:1: error: "MALLOC_PRODUCTION" redefined
<command-line>: error: this is the location of the previous definition
*** [malloc.o] Error code 1
*** [malloc.So] Error code 1
2 errors
*** [lib/libc__L] Error code 2
1 error
*** [libraries] Error code 2
1 error
*** [_libraries] Error code 2
1 error
*** [buildworld] Error code 2
1 error
>How-To-Repeat:
MALLOC_PRODUCTION=yes && make buildworld (would be a fair guess)
>Fix:
Remove MALLOC_PRODUCTION from man make.conf or better, advise that it is not applicable from Nov-2011.

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