3 files changed, 4 insertions, 1 deletions
diff --git a/src/include/regex/regex.h b/src/include/regex/regex.h
index b0b86f3cb6d..677f5ca9a24 100644
--- a/src/include/regex/regex.h
+++ b/src/include/regex/regex.h
@@ -40,6 +40,7 @@
 #ifndef _REGEX_H_
 #define _REGEX_H_
 
+#include "postgres.h"
 #include <sys/types.h>
 #include "mb/pg_wchar.h"
 
diff --git a/src/include/regex/regex2.h b/src/include/regex/regex2.h
index aab9195dc55..25d7853c420 100644
--- a/src/include/regex/regex2.h
+++ b/src/include/regex/regex2.h
@@ -37,6 +37,8 @@
  *		@(#)regex2.h	8.4 (Berkeley) 3/20/94
  */
 
+#include "postgres.h"
+
 /*
  * First, the stuff that ends up in the outside-world include file
 */
diff --git a/src/include/regex/utils.h b/src/include/regex/utils.h
index bf51a8b8e74..b2e2307e1d0 100644
--- a/src/include/regex/utils.h
+++ b/src/include/regex/utils.h
@@ -37,7 +37,7 @@
  *		@(#)utils.h		8.3 (Berkeley) 3/20/94
  */
 
-#include "config.h"
+#include "postgres.h"
 
 /* utility definitions */
 #define DUPMAX			100000000		/* xxx is this right? */