Use RTLD_NOW, not RTLD_LAZY, as binding mode for dlopen() on all platforms.

This restores the Linux behavior to what it was in PG 7.0 and 7.1, and
causes other platforms to agree.  (Other well-tested platforms like HPUX
were doing it this way already.)  Per pghackers discussion over the past
month or so.

1 files changed, 30 insertions, 6 deletions

diff --git a/src/backend/port/dynloader/solaris.h b/src/backend/port/dynloader/solaris.h
index ddb6b965b95..2f0c00e97b6 100644
--- a/src/backend/port/dynloader/solaris.h
+++ b/src/backend/port/dynloader/solaris.h
@@ -1,14 +1,38 @@
-/* $Header: /cvsroot/pgsql/src/backend/port/dynloader/solaris.h,v 1.7 2001/11/05 17:46:27 momjian Exp $ */
-
-#ifndef DYNLOADER_SOLARIS_H
-#define DYNLOADER_SOLARIS_H
+/*-------------------------------------------------------------------------
+ *
+ * solaris.h
+ *	  port-specific prototypes for Solaris
+ *
+ *
+ * Portions Copyright (c) 1996-2001, PostgreSQL Global Development Group
+ * Portions Copyright (c) 1994, Regents of the University of California
+ *
+ * $Id: solaris.h,v 1.8 2002/02/12 23:40:53 tgl Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+#ifndef PORT_PROTOS_H
+#define PORT_PROTOS_H
 
 #include <dlfcn.h>
 #include "utils/dynamic_loader.h"
 
-#define pg_dlopen(f)	dlopen((f), RTLD_LAZY | RTLD_GLOBAL)
+/*
+ * In some older systems, the RTLD_NOW flag isn't defined and the mode
+ * argument to dlopen must always be 1.  The RTLD_GLOBAL flag is wanted
+ * if available, but it doesn't exist everywhere.
+ * If it doesn't exist, set it to 0 so it has no effect.
+ */
+#ifndef RTLD_NOW
+#define RTLD_NOW 1
+#endif
+#ifndef RTLD_GLOBAL
+#define RTLD_GLOBAL 0
+#endif
+
+#define pg_dlopen(f)	dlopen((f), RTLD_NOW | RTLD_GLOBAL)
 #define pg_dlsym		dlsym
 #define pg_dlclose		dlclose
 #define pg_dlerror		dlerror
 
-#endif   /* DYNLOADER_SOLARIS_H */
+#endif   /* PORT_PROTOS_H */