I haven't tried building postgres with the Watcom compiler for 7.1 because

it does not support 64bit integers. AFAIK that's the default data type for
OIDs, so I am not surprised that this does not work. Use gcc instead.
BTW., 7.1 does not compile as is with gcc either, I believed the
required patches made it into the 7.1.1 release but obviously I missed
the deadline.
Since the ports mailing list does not seem to be archived I have attached
a copy of the patch (for 7.1 and 7.1.1).

I've just performed a build of a Watcom compiled version and found a couple
of bugs in the watcom specific part of that patch. Please use the attached
version instead.

Tegge, Bernd

src/pl/plpgsql/Makefile

@@ -4,7 +4,7 @@
 #
 # Copyright (c) 1994, Regents of the University of California
 #
-# $Header: /cvsroot/pgsql/src/pl/plpgsql/Makefile,v 1.5 2000/08/31 16:12:15 petere Exp $
+# $Header: /cvsroot/pgsql/src/pl/plpgsql/Makefile,v 1.6 2001/05/24 15:53:34 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -12,8 +12,17 @@ subdir = src/pl/plpgsql
 top_builddir = ../../..
 include $(top_builddir)/src/Makefile.global
 
+ifneq ($(PORTNAME), qnx4)
+
 all install installdirs uninstall distprep:
 	$(MAKE) -C src $@
 
+else  #qnx4
+
+all install installdirs uninstall distprep:
+	echo plpgsql not supported with QNX due to lack of shared library support
+
+endif # qnx4
+
 clean distclean maintainer-clean:
 	-$(MAKE) -C src $@