As part of
the Build program's
configuration efforts, it executes the
devtools/bin/configure.sh script. That script
attempts to help you automatically configure
db(3) and a resolver library for your system.
First, the standard include and library directories are searched for
db(3) support, and, if found, NEWDB is defined
for confMAPDEF.
Second, configure.sh searches for an appropriate
resolver library and modifies confLIBS
appropriately:
-lresolv 
for BIND before V4.9
-lresolv -l44bsd for BIND V4.9.x
-lbind for BIND V8.x
This -S Build switch prevents
these two automatic configuration strategies.
