This fixes the error:

Invalid lvalue in assignment

diff -dur netkit-base-0.17-p/inetd/servtab.c netkit-base-0.17/inetd/servtab.c
--- netkit-base-0.17-p/inetd/servtab.c	2000-07-22 22:20:50.000000000 +0200
+++ netkit-base-0.17/inetd/servtab.c	2005-10-19 04:04:33.000000000 +0200
@@ -771,7 +771,7 @@
 			return;
 		}
 		
-#define SWAP(type, a, b) {type c=(type)a; (type)a=(type)b; (type)b=(type)c;}
+#define SWAP(type, a, b) {type c=(type)a; a=(type)b; b=(type)c;}
 
 		/*
 		 * sep->se_wait may be holding the pid of a daemon