diff --git a/contrib/pageinspect/hashfuncs.c b/contrib/pageinspect/hashfuncs.c
index e69913302a..9374c4aabc 100644
--- a/contrib/pageinspect/hashfuncs.c
+++ b/contrib/pageinspect/hashfuncs.c
@@ -18,6 +18,7 @@
 #include "catalog/pg_am.h"
 #include "funcapi.h"
 #include "miscadmin.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/rel.h"
 
diff --git a/src/backend/executor/execExpr.c b/src/backend/executor/execExpr.c
index 6d09f2a218..58e2432aac 100644
--- a/src/backend/executor/execExpr.c
+++ b/src/backend/executor/execExpr.c
@@ -42,6 +42,7 @@
 #include "nodes/nodeFuncs.h"
 #include "optimizer/optimizer.h"
 #include "pgstat.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/datum.h"
 #include "utils/lsyscache.h"
diff --git a/src/backend/executor/execExprInterp.c b/src/backend/executor/execExprInterp.c
index 66a67c72b2..d61f75bc3b 100644
--- a/src/backend/executor/execExprInterp.c
+++ b/src/backend/executor/execExprInterp.c
@@ -62,6 +62,7 @@
 #include "executor/execExpr.h"
 #include "executor/nodeSubplan.h"
 #include "funcapi.h"
+#include "utils/array.h"
 #include "utils/memutils.h"
 #include "miscadmin.h"
 #include "nodes/nodeFuncs.h"
diff --git a/src/backend/executor/execTuples.c b/src/backend/executor/execTuples.c
index 5ee2a464bb..697f1fed71 100644
--- a/src/backend/executor/execTuples.c
+++ b/src/backend/executor/execTuples.c
@@ -65,6 +65,7 @@
 #include "nodes/nodeFuncs.h"
 #include "storage/bufmgr.h"
 #include "utils/builtins.h"
+#include "utils/expandeddatum.h"
 #include "utils/lsyscache.h"
 #include "utils/typcache.h"
 
diff --git a/src/backend/executor/nodeAgg.c b/src/backend/executor/nodeAgg.c
index a9a1fd022a..58c376aeb7 100644
--- a/src/backend/executor/nodeAgg.c
+++ b/src/backend/executor/nodeAgg.c
@@ -231,6 +231,7 @@
 #include "parser/parse_coerce.h"
 #include "utils/acl.h"
 #include "utils/builtins.h"
+#include "utils/expandeddatum.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
 #include "utils/syscache.h"
diff --git a/src/backend/executor/nodeWindowAgg.c b/src/backend/executor/nodeWindowAgg.c
index cb81357304..b5d3f3c421 100644
--- a/src/backend/executor/nodeWindowAgg.c
+++ b/src/backend/executor/nodeWindowAgg.c
@@ -46,6 +46,7 @@
 #include "parser/parse_coerce.h"
 #include "utils/acl.h"
 #include "utils/builtins.h"
+#include "utils/expandeddatum.h"
 #include "utils/datum.h"
 #include "utils/lsyscache.h"
 #include "utils/memutils.h"
diff --git a/src/backend/partitioning/partprune.c b/src/backend/partitioning/partprune.c
index 44bcff2d08..29f1c11b24 100644
--- a/src/backend/partitioning/partprune.c
+++ b/src/backend/partitioning/partprune.c
@@ -53,6 +53,7 @@
 #include "partitioning/partbounds.h"
 #include "partitioning/partprune.h"
 #include "rewrite/rewriteManip.h"
+#include "utils/array.h"
 #include "utils/lsyscache.h"
 
 
diff --git a/src/backend/statistics/extended_stats.c b/src/backend/statistics/extended_stats.c
index 23c74f7d90..48f17ba8d5 100644
--- a/src/backend/statistics/extended_stats.c
+++ b/src/backend/statistics/extended_stats.c
@@ -31,6 +31,7 @@
 #include "postmaster/autovacuum.h"
 #include "statistics/extended_stats_internal.h"
 #include "statistics/statistics.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/fmgroids.h"
 #include "utils/lsyscache.h"
diff --git a/src/backend/statistics/mcv.c b/src/backend/statistics/mcv.c
index cec06f8c44..bae6f21968 100644
--- a/src/backend/statistics/mcv.c
+++ b/src/backend/statistics/mcv.c
@@ -26,6 +26,7 @@
 #include "optimizer/clauses.h"
 #include "statistics/extended_stats_internal.h"
 #include "statistics/statistics.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/bytea.h"
 #include "utils/fmgroids.h"
diff --git a/src/backend/utils/adt/acl.c b/src/backend/utils/adt/acl.c
index cfd139e6e9..d7e6100ccb 100644
--- a/src/backend/utils/adt/acl.c
+++ b/src/backend/utils/adt/acl.c
@@ -30,6 +30,7 @@
 #include "funcapi.h"
 #include "miscadmin.h"
 #include "utils/acl.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/catcache.h"
 #include "utils/hashutils.h"
diff --git a/src/backend/utils/adt/tsvector_op.c b/src/backend/utils/adt/tsvector_op.c
index 696a7fdf91..28d042273e 100644
--- a/src/backend/utils/adt/tsvector_op.c
+++ b/src/backend/utils/adt/tsvector_op.c
@@ -25,6 +25,7 @@
 #include "miscadmin.h"
 #include "parser/parse_coerce.h"
 #include "tsearch/ts_utils.h"
+#include "utils/array.h"
 #include "utils/builtins.h"
 #include "utils/lsyscache.h"
 #include "utils/regproc.h"
diff --git a/src/include/catalog/objectaddress.h b/src/include/catalog/objectaddress.h
index 95cc315868..7e61569f9f 100644
--- a/src/include/catalog/objectaddress.h
+++ b/src/include/catalog/objectaddress.h
@@ -77,7 +77,7 @@ extern char *getObjectTypeDescription(const ObjectAddress *object);
 extern char *getObjectIdentity(const ObjectAddress *address);
 extern char *getObjectIdentityParts(const ObjectAddress *address,
 									List **objname, List **objargs);
-extern ArrayType *strlist_to_textarray(List *list);
+extern struct ArrayType *strlist_to_textarray(List *list);
 
 extern ObjectType get_relkind_objtype(char relkind);
 
diff --git a/src/include/utils/acl.h b/src/include/utils/acl.h
index f4c160ee72..b99da73728 100644
--- a/src/include/utils/acl.h
+++ b/src/include/utils/acl.h
@@ -35,7 +35,6 @@
 #include "access/htup.h"
 #include "nodes/parsenodes.h"
 #include "parser/parse_node.h"
-#include "utils/array.h"
 #include "utils/snapshot.h"
 
 
@@ -104,7 +103,7 @@ typedef struct AclItem
 /*
  * Acl			a one-dimensional array of AclItem
  */
-typedef ArrayType Acl;
+typedef struct ArrayType Acl;
 
 #define ACL_NUM(ACL)			(ARR_DIMS(ACL)[0])
 #define ACL_DAT(ACL)			((AclItem *) ARR_DATA_PTR(ACL))
diff --git a/src/include/utils/array.h b/src/include/utils/array.h
index b441eb452b..5cfafe0045 100644
--- a/src/include/utils/array.h
+++ b/src/include/utils/array.h
@@ -77,7 +77,7 @@ struct ExprContext;
  * CAUTION: if you change the header for ordinary arrays you will also
  * need to change the headers for oidvector and int2vector!
  */
-typedef struct
+typedef struct ArrayType
 {
 	int32		vl_len_;		/* varlena header (do not touch directly!) */
 	int			ndim;			/* # of dimensions */