2005-02-09  Doug Rupp  <rupp@adacore.com>
	    Thomas Quinot  <quinot@adacore.com>

	* adaint.c, adaint.h
	[VMS] (to_ptr32): New function.
	(MAYBE_TO_PTR32): New macro.
	(__gnat_portable_spawn,__gnat_portable_no_block_spawn): Adjust argv
	for pointer size.
	[VMS] (descriptor_s, ile_s): Use __char_ptr32 for adr field.
	[VMS] (#define fork()): Remove since unneccessary.
	(__gnat_set_close_on_exec): New routine to support
	GNAT.OS_Lib.Set_Close_On_Exec.

	* g-expect.adb (Set_Up_Communications): Mark the pipe descriptors for
	the parent side as close-on-exec so that they are not inherited by the
	child.

	* g-os_lib.ads, g-os_lib.adb (Set_Close_On_Exec): New subprogram to
	set or clear the FD_CLOEXEC flag on a file descriptor.

From-SVN: r94811