Fix bogus subdir setting ... wonder just what that affects ...

src/backend/replication/walreceiver/Makefile

@@ -4,15 +4,15 @@
 #    Makefile for src/backend/replication/walreceiver
 #
 # IDENTIFICATION
-#    $PostgreSQL: pgsql/src/backend/replication/walreceiver/Makefile,v 1.1 2010/01/15 09:19:03 heikki Exp $
+#    $PostgreSQL: pgsql/src/backend/replication/walreceiver/Makefile,v 1.2 2010/01/15 20:34:11 tgl Exp $
 #
 #-------------------------------------------------------------------------
 
-subdir = src/backend/postmaster/walreceiver
+subdir = src/backend/replication/walreceiver
 top_builddir = ../../../..
 include $(top_builddir)/src/Makefile.global
 
-override CPPFLAGS := -I$(srcdir) -I$(libpq_srcdir) $(CPPFLAGS)
+override CPPFLAGS := -I$(libpq_srcdir) $(CPPFLAGS)
 
 OBJS = walreceiver.o
 SHLIB_LINK = $(libpq)