diff --git a/src/bin/psql/Makefile b/src/bin/psql/Makefile
index 968c12f3b7183675f0766ac44e62fc5531eb9410..23df265f0e33929916746ba4348b4ff5bd2d714f 100644
--- a/src/bin/psql/Makefile
+++ b/src/bin/psql/Makefile
@@ -5,7 +5,7 @@
 # Portions Copyright (c) 1996-2008, PostgreSQL Global Development Group
 # Portions Copyright (c) 1994, Regents of the University of California
 #
-# $PostgreSQL: pgsql/src/bin/psql/Makefile,v 1.60 2008/01/01 19:45:55 momjian Exp $
+# $PostgreSQL: pgsql/src/bin/psql/Makefile,v 1.60.2.1 2009/11/10 23:12:29 tgl Exp $
 #
 #-------------------------------------------------------------------------
 
@@ -21,7 +21,7 @@ override CPPFLAGS := -I$(srcdir) -I$(libpq_srcdir) -I$(top_srcdir)/src/bin/pg_du
 
 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 \
-	psqlscan.o tab-complete.o mbprint.o dumputils.o $(WIN32RES)
+	tab-complete.o mbprint.o dumputils.o $(WIN32RES)
 
 EXTRA_OBJS = $(top_builddir)/src/backend/parser/keywords.o
 
@@ -46,6 +46,9 @@ $(srcdir)/sql_help.h:
 	@echo "*** Perl is needed to build psql help."
 endif
 
+# psqlscan is compiled as part of mainloop
+mainloop.o: psqlscan.c
+
 $(srcdir)/psqlscan.c: psqlscan.l
 ifdef FLEX
 	$(FLEX) $(FLEXFLAGS) -o'$@' $<
diff --git a/src/bin/psql/mainloop.c b/src/bin/psql/mainloop.c
index 613dab0506efd6fb581b0bde4fb75cefd0804cc3..2012b94b22e90a69eee56ad75ba4b26ec9e28652 100644
--- a/src/bin/psql/mainloop.c
+++ b/src/bin/psql/mainloop.c
@@ -3,7 +3,7 @@
  *
  * Copyright (c) 2000-2008, PostgreSQL Global Development Group
  *
- * $PostgreSQL: pgsql/src/bin/psql/mainloop.c,v 1.87 2008/01/01 19:45:56 momjian Exp $
+ * $PostgreSQL: pgsql/src/bin/psql/mainloop.c,v 1.87.2.1 2009/11/10 23:12:29 tgl Exp $
  */
 #include "postgres_fe.h"
 #include "mainloop.h"
@@ -370,3 +370,13 @@ MainLoop(FILE *source)
 
 	return successResult;
 }	/* MainLoop() */
+
+
+/*
+ * psqlscan.c is #include'd here instead of being compiled on its own.
+ * This is because we need postgres_fe.h to be read before any system
+ * include files, else things tend to break on platforms that have
+ * multiple infrastructures for stdio.h and so on.  flex is absolutely
+ * uncooperative about that, so we can't compile psqlscan.c on its own.
+ */
+#include "psqlscan.c"