roken: fix Solaris build

libroken needs to be linked against libnsl for inet_ntoa()

cf/sunos.m4

@@ -26,4 +26,5 @@ if test "$sunos" != no; then
 	AC_DEFINE_UNQUOTED(SunOS, $sunos, 
 		[Define to what version of SunOS you are running.])
 fi
+AM_CONDITIONAL(SUNOS, test "$sunos" != no)
 ])

lib/roken/Makefile.am

@@ -198,6 +198,9 @@ EXTRA_libroken_la_SOURCES =	\
 	vis.hin	
 
 libroken_la_LIBADD = @LTLIBOBJS@ $(LIB_crypt) $(LIB_pidfile)
+if SUNOS
+libroken_la_LIBADD += -lnsl
+endif
 
 $(LTLIBOBJS) $(libroken_la_OBJECTS): roken.h $(XHEADERS)