Adjust platform test according to new OpenPKG macro standard

netcat/netcat.spec

@@ -33,7 +33,7 @@ Distribution: OpenPKG [BASE]
 Group:        Network
 License:      no restrictions
 Version:      1.10
-Release:      20030707
+Release:      20030917
 
 #   list of sources
 Source0:      http://www.atstake.com/research/tools/nc110.tgz
@@ -62,8 +62,8 @@ AutoReqProv:  no
 
 %build
     os=generic
-    case "%{l_target}" in
-        *-solaris* ) os=solaris ;;
+    case "%{l_platform -t}" in
+        *-sunos*   ) os=solaris ;;
         *-linux*   ) os=linux   ;;
         *-freebsd* ) os=freebsd ;;
     esac