misc/47960: build distribution failure w/ postfix mta

[brad.harder%gmail.com@localhost]

>Number:         47960
>Category:       misc
>Synopsis:       build distribution failure w/ postfix mta
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    misc-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jun 24 21:20:00 +0000 2013
>Originator:     Brad Harder
>Release:        -current, amd64
>Organization:
method logic digital
>Environment:
NetBSD kamloops 6.99.22 NetBSD 6.99.22 (GENERIC) #219: Mon Jun 24 10:37:00 PDT 
2013  root@kamloops:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
>Description:
#      link  pickup/pickup
/usr/src/obj/tooldir.NetBSD-6.99.22-amd64/bin/x86_64--netbsd-gcc    
--sysroot=/usr/src/obj/destdir.amd64     -o pickup  pickup.o  
-Wl,-rpath-link,/usr/src/obj/destdir.amd64/lib  -L=/lib 
/usr/src/external/ibm-public/postfix/lib/masterlib/obj/libmaster.a
 /usr/src/external/ibm-public/postfix/lib/global/obj/libglobal.a 
/usr/src/external/ibm-public/postfix/lib/util/obj/libutil.a -lsaslc -lssl 
-lgssapi -lsqlite3 -lldap
--- dependall-bsd ---
/lib/libcrypt.so.1: undefined reference to `__explicit_bzero'
collect2: ld returned 1 exit status
*** [dhclient] Error code 1
nbmake: stopped in /usr/src/external/bsd/dhcp/bin/client
1 error
nbmake: stopped in /usr/src/external/bsd/dhcp/bin/client
*** [dependall] Error code 2
nbmake: stopped in /usr/src/external/bsd/dhcp/bin/client
1 error
nbmake: stopped in /usr/src/external/bsd/dhcp/bin/client
*** [dependall-client] Error code 2
nbmake: stopped in /usr/src/external/bsd/dhcp/bin
1 error
nbmake: stopped in /usr/src/external/bsd/dhcp/bin
*** [dependall-bin] Error code 2
nbmake: stopped in /usr/src/external/bsd/dhcp
1 error
nbmake: stopped in /usr/src/external/bsd/dhcp
*** [dependall-dhcp] Error code 2
nbmake: stopped in /usr/src/external/bsd
1 error
nbmake: stopped in /usr/src/external/bsd
*** [dependall-bsd] Error code 2
nbmake: stopped in /usr/src/external
>How-To-Repeat:
update to latest /src, ./build.sh -j4 -u -x distribution
>Fix: