Index: src/backend/storage/file/fd.c
===================================================================
RCS file: /projects/cvsroot/pgsql/src/backend/storage/file/fd.c,v
retrieving revision 1.127
diff -u -r1.127 fd.c
--- src/backend/storage/file/fd.c	5 Mar 2006 15:58:37 -0000	1.127
+++ src/backend/storage/file/fd.c	27 May 2006 16:54:36 -0000
@@ -46,6 +46,10 @@
 #include <unistd.h>
 #include <fcntl.h>
 
+#ifdef __GLIBC__
+#include <stdio_ext.h>
+#endif
+
 #include "miscadmin.h"
 #include "access/xact.h"
 #include "storage/fd.h"
@@ -1258,6 +1262,11 @@
 	{
 		AllocateDesc *desc = &allocatedDescs[numAllocatedDescs];
 
+#ifdef __GLIBC__
+		/* disable glibc braindamaged locking */
+		__fsetlocking(file, FSETLOCKING_BYCALLER);
+#endif
+
 		desc->kind = AllocateDescFile;
 		desc->desc.file = file;
 		desc->create_subid = GetCurrentSubTransactionId();