env.c ( __gnat_clearenv): Use the __gnat_unsetenv mechanism for NetBSD.

	* env.c ( __gnat_clearenv): Use the __gnat_unsetenv mechanism for
	NetBSD.

From-SVN: r127708

gcc/ada/ChangeLog

+2007-08-22  Krister Walfridsson  <cato@df.lth.se>
+
+	* env.c ( __gnat_clearenv): Use the __gnat_unsetenv mechanism for
+	NetBSD.
+
 2007-08-16  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* misc.c (gnat_type_max_size): Constify.

gcc/ada/env.c

@@ -6,7 +6,7 @@
  *                                                                          *
  *                          C Implementation File                           *
  *                                                                          *
- *            Copyright (C) 2005-2006, Free Software Foundation, Inc.       *
+ *            Copyright (C) 2005-2007, Free Software Foundation, Inc.       *
  *                                                                          *
  * GNAT is free software;  you can  redistribute it  and/or modify it under *
  * terms of the  GNU General Public License as published  by the Free Soft- *
@@ -288,7 +288,8 @@ void __gnat_clearenv (void) {
     index++;
   }
 #elif defined (__MINGW32__) || defined (__FreeBSD__) || defined (__APPLE__) \
-   || (defined (__vxworks) && defined (__RTP__)) || defined (__CYGWIN__)
+   || (defined (__vxworks) && defined (__RTP__)) || defined (__CYGWIN__) \
+   || defined (__NetBSD__)
   /* On Windows, FreeBSD and MacOS there is no function to clean all the
      environment but there is a "clean" way to unset a variable. So go
      through the environ table and call __gnat_unsetenv on all entries */