Log Message:
Builds and installs on Solaris. The changes:

o various explicit #includes
o sources use {u_,u}int*_t in equal share, so just build with -D
o providing Solaris' MAXHOSTNAMELEN with -D avoids patching half a dozen files
o misc. build fixes

Use pkgsrc CONF_FILES framework
Make pkglint happy

TODO: Test on Solaris, SMF config files for venus and server