--- ./src/backend/libpq/auth.c.00	2003-09-26 15:27:31.000000000 +0000
+++ ./src/backend/libpq/auth.c	2003-11-08 22:54:32.000000000 +0000
@@ -480,6 +480,7 @@
 			 * only if it is defined and SO_PEERCRED isn't.
 			 */
 #if defined(HAVE_STRUCT_FCRED) || defined(HAVE_STRUCT_SOCKCRED)
+#ifndef _SCO_DS
 
 			/*
 			 * Receive credentials on next message receipt, BSD/OS,
@@ -495,6 +496,7 @@
 					 errmsg("could not enable credential reception: %m")));
 			}
 #endif
+#endif
 			if (port->raddr.addr.ss_family == AF_UNIX)
 				sendAuthRequest(port, AUTH_REQ_SCM_CREDS);
 #endif
--- ./src/backend/libpq/pqcomm.c.00	2003-09-25 06:57:59.000000000 +0000
+++ ./src/backend/libpq/pqcomm.c	2003-11-08 22:55:19.000000000 +0000
@@ -312,6 +312,7 @@
 			continue;
 		}
 
+#ifndef _SCO_DS
 		if (!IS_AF_UNIX(addr->ai_family))
 		{
 			if ((setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
@@ -324,8 +325,10 @@
 				continue;
 			}
 		}
+#endif
 
 #ifdef IPV6_V6ONLY
+#ifndef _SCO_DS
 		if (addr->ai_family == AF_INET6)
 		{
 			if (setsockopt(fd, IPPROTO_IPV6, IPV6_V6ONLY,
@@ -339,6 +342,7 @@
 			}
 		}
 #endif
+#endif
 
 		/*
 		 * Note: This might fail on some OS's, like Linux older than
@@ -548,6 +552,7 @@
 	}
 
 	/* select NODELAY and KEEPALIVE options if it's a TCP connection */
+#ifndef _SCO_DS
 	if (!IS_AF_UNIX(port->laddr.addr.ss_family))
 	{
 		int			on;
@@ -569,6 +574,7 @@
 			return STATUS_ERROR;
 		}
 	}
+#endif
 
 	return STATUS_OK;
 }
--- ./src/interfaces/libpq/fe-connect.c.00	2003-10-18 05:02:06.000000000 +0000
+++ ./src/interfaces/libpq/fe-connect.c	2003-11-08 22:55:41.000000000 +0000
@@ -797,6 +797,7 @@
 static int
 connectNoDelay(PGconn *conn)
 {
+#ifndef _SCO_DS
 #ifdef	TCP_NODELAY
 	int			on = 1;
 
@@ -812,6 +813,7 @@
 		return 0;
 	}
 #endif
+#endif
 
 	return 1;
 }
--- ./src/template/sco.00	2003-10-09 03:20:34.000000000 +0000
+++ ./src/template/sco	2003-11-06 23:07:14.000000000 +0000
@@ -1,2 +1,3 @@
-CC="$CC -b elf"
-
+if test "$GCC" != yes ; then
+    CC="$CC -b elf"
+fi