diff --git a/src/port/thread.c b/src/port/thread.c
index 729c0e8ad3c..a37a0ed4fd9 100644
--- a/src/port/thread.c
+++ b/src/port/thread.c
@@ -7,14 +7,16 @@
  *
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  *
- * $Id: thread.c,v 1.10 2003/09/29 03:32:05 momjian Exp $
+ * $Id: thread.c,v 1.11 2003/10/24 20:48:10 momjian Exp $
  *
  *-------------------------------------------------------------------------
  */
 
 #include "postgres.h"
 
+#if defined(USE_THREADS)
 #include <pthread.h>
+#endif
 #include <sys/types.h>
 #include <pwd.h>
 #include <errno.h>
diff --git a/src/tools/thread/thread_test.c b/src/tools/thread/thread_test.c
index b5db0e28ecb..22d925ebef1 100644
--- a/src/tools/thread/thread_test.c
+++ b/src/tools/thread/thread_test.c
@@ -6,7 +6,7 @@
  * Portions Copyright (c) 1996-2003, PostgreSQL Global Development Group
  * Portions Copyright (c) 1994, Regents of the University of California
  *
- *	$Header: /cvsroot/pgsql/src/tools/thread/Attic/thread_test.c,v 1.2 2003/09/27 16:24:45 momjian Exp $
+ *	$Header: /cvsroot/pgsql/src/tools/thread/Attic/thread_test.c,v 1.3 2003/10/24 20:48:10 momjian Exp $
  *
  *	This program tests to see if your standard libc functions use
  *	pthread_setspecific()/pthread_getspecific() to be thread-safe.
@@ -21,7 +21,9 @@
  */
 
 
+#ifdef USE_THREADS
 #include <pthread.h>
+#endif
 #include <unistd.h>
 #include <stdio.h>
 #include <stdlib.h>