2006-02-13 Pascal Obry <obry@adacore.com>

	    Nicolas Roche  <roche@adacore.com>
	    Arnaud Charlet  <charlet@adacore.com>

	* adaint.h, adaint.c (DIR_SEPARATOR): Use _T() macro for Unicode
	support.
	(__gnat_try_lock): Add unicode support by using a specific section on
	Windows.
	(__gnat_get_current_dir): Idem.
	(__gnat_open_read): Idem.
	(__gnat_open_rw): Idem.
	(__gnat_open_create): Idem.
	(__gnat_create_output_file): Idem.
	(__gnat_open_append): Idem.
	(__gnat_open_new): Idem.
	(__gnat_file_time_name): Idem.
	(__gnat_set_file_time_name): Idem.
	(__gnat_stat): Idem.
	(win32_no_block_spawn): Idem.
	(__gnat_locate_exec_on_path): Idem.
	(__gnat_opendir): New routine.
	(__gnat_closedir): Idem.
	(__gnat_readdir): Add new parameter length (pointer to int). Update
	implementation to use it and add specific Win32 code for Unicode
	support.
	(__gnat_get_env_value_ptr): Remove. Replaced by __gnat_getenv in env.c
	(__gnat_set_env_value): Remove. Replaced by __gnat_setenv in env.c
	(convert_addresses): Do not define this dummy routine on VMS.

	* mingw32.h (GNAT_UNICODE_SUPPORT): New definition, if set the GNAT
	runtime Unicode support will be activated.
	(S2WS): String to Wide-String conversion. This version just copy a
	string in non Unicode version.
	(WS2S): Wide-String to String conversion. This version just copy a
	string in non Unicode version.

	* g-dirope.adb: (Close): Now import __gnat_closedir from adaint.c.
	(Open): Now import __gnat_opendir from adaint.c.
	(Read): Change the implementation to support unicode characters. It is
	not possible to use strlen() on Windows as this version supports only
	standard ASCII characters. So the length of the directory entry is now
	returned from the imported __gnat_readdir routine.
	Update copyright notice.

	* s-crtl-vms64.ads, s-crtl.ads: (closedir): Moved to adaint.c.
	(opendir): Moved to adaint.c.

	* g-os_lib.adb (Copy_Time_Stamp): Fix off-by-one range computation.
	(Get_Directory): Fix wrong indexing.
	(Getenv): replace __gnat_get_env_value_ptr from adaint.c by
	__gnat_getenv from env.c
	(Setenv): replace __gnat_set_env_value from adaint.c by __gnat_setenv
	from env.c

	* env.h, env.c: New file.

	* s-scaval.adb (Initialize): Replace __gnat_get_env_value_ptr from
	adaint.c by __gnat_getenv from env.c

	* s-shasto.adb (Initialize): replace __gnat_get_env_value_ptr from
	adaint.c by __gnat_getenv from env.c

	* Make-lang.in: Add env.o in the list of C object needed by gnat1
	and gnatbind.
	Update dependencies.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@111029 138bc75d-0d04-0410-961f-82ee72b054a4

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