pkg/44772: pkgsrc/net/powerdns-recursor fails to build on DragonFly

[peter%theshell.com@localhost]

>Number:         44772
>Category:       pkg
>Synopsis:       pkgsrc/net/powerdns-recursor fails to build on DragonFly
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    pkg-manager
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Mar 25 23:40:00 +0000 2011
>Originator:     Peter Avalos
>Release:        DragonFly 2.9
>Organization:
DragonFly
>Environment:
>Description:
This is not the same as 41822.
Fails to build due to undefined references for stuff in <string.h> (strerror, 
memset, etc.).  This is likely due to DragonFly's default use of GCC 4.4.

>How-To-Repeat:
Attempt to build on DragonFly.
>Fix:
Add #include <string.h> to rec_channel.cc.