diff --git a/contrib/cube/Makefile b/contrib/cube/Makefile
index 9438dbb9336a5011d5663102836e3ee7e52fb382..f661952858ce4fe3a1839714e7fb7fc733056b80 100644
--- a/contrib/cube/Makefile
+++ b/contrib/cube/Makefile
@@ -1,4 +1,4 @@
-# $PostgreSQL: pgsql/contrib/cube/Makefile,v 1.18 2006/04/03 18:47:41 petere Exp $
+# $PostgreSQL: pgsql/contrib/cube/Makefile,v 1.19 2007/02/09 17:24:33 petere Exp $
 
 MODULE_big = cube
 OBJS= cube.o cubeparse.o
@@ -10,8 +10,6 @@ REGRESS = cube
 
 EXTRA_CLEAN = y.tab.c y.tab.h
 
-PG_CPPFLAGS = -I.
-
 SHLIB_LINK += $(filter -lm, $(LIBS))
 
 ifdef USE_PGXS
diff --git a/contrib/hstore/Makefile b/contrib/hstore/Makefile
index b299e6c2666f288afdd1c7ecae571e143e807953..d15d2ae775a50ed6ba0385119cee05f6ce412039 100644
--- a/contrib/hstore/Makefile
+++ b/contrib/hstore/Makefile
@@ -1,12 +1,9 @@
-# $PostgreSQL: pgsql/contrib/hstore/Makefile,v 1.3 2007/02/09 17:04:00 petere Exp $
+# $PostgreSQL: pgsql/contrib/hstore/Makefile,v 1.4 2007/02/09 17:24:33 petere Exp $
 
 subdir = contrib/hstore
 top_builddir = ../..
 include $(top_builddir)/src/Makefile.global
 
-
-override CPPFLAGS := -I. $(CPPFLAGS)
-
 MODULE_big = hstore
 OBJS = hstore_io.o hstore_op.o hstore_gist.o crc32.o
 
diff --git a/contrib/pg_trgm/Makefile b/contrib/pg_trgm/Makefile
index b710df99569901be7403526c66758bdab2428b31..15f9e2cc27f79e1712ef5709942ffd8b194b98d4 100644
--- a/contrib/pg_trgm/Makefile
+++ b/contrib/pg_trgm/Makefile
@@ -1,6 +1,4 @@
-# $PostgreSQL: pgsql/contrib/pg_trgm/Makefile,v 1.5 2007/02/09 17:04:00 petere Exp $
-
-PG_CPPFLAGS = -I.
+# $PostgreSQL: pgsql/contrib/pg_trgm/Makefile,v 1.6 2007/02/09 17:24:33 petere Exp $
 
 MODULE_big = pg_trgm
 OBJS = trgm_op.o trgm_gist.o 
diff --git a/contrib/seg/Makefile b/contrib/seg/Makefile
index a0ccb97ec5299ff3a721b3efd82a860e260aa9c4..e0e95cf9ee8a3ae076fc283fa351009cf5311a22 100644
--- a/contrib/seg/Makefile
+++ b/contrib/seg/Makefile
@@ -1,4 +1,4 @@
-# $PostgreSQL: pgsql/contrib/seg/Makefile,v 1.17 2006/04/03 18:47:41 petere Exp $
+# $PostgreSQL: pgsql/contrib/seg/Makefile,v 1.18 2007/02/09 17:24:33 petere Exp $
 
 MODULE_big = seg
 OBJS = seg.o segparse.o
@@ -9,8 +9,6 @@ REGRESS = seg
 
 EXTRA_CLEAN = y.tab.c y.tab.h
 
-PG_CPPFLAGS = -I.
-
 ifdef USE_PGXS
 PGXS := $(shell pg_config --pgxs)
 include $(PGXS)