Add -DFRONTEND for non-MinGW Win32 ports.

src/bin/psql/Makefile

@@ -5,7 +5,7 @@
 # Portions Copyright (c) 1996-2002, PostgreSQL Global Development Group
 # Portions Copyright (c) 1994, Regents of the University of California
 #
-# $Header: /cvsroot/pgsql/src/bin/psql/Makefile,v 1.35 2002/07/27 20:10:05 petere Exp $
+# $Header: /cvsroot/pgsql/src/bin/psql/Makefile,v 1.36 2003/06/06 22:17:42 momjian Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -15,7 +15,7 @@ include $(top_builddir)/src/Makefile.global
 
 REFDOCDIR= $(top_srcdir)/doc/src/sgml/ref
 
-override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS)
+override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS) -DFRONTEND
 
 OBJS=command.o common.o help.o input.o stringutils.o mainloop.o copy.o \
 	startup.o prompt.o variables.o large_obj.o print.o describe.o \