2009-04-17  Eric Botcazou  <ebotcazou@adacore.com>

	* exp_ch4.adb (Expand_Concatenation): Do not use calls at -Os.

2009-04-17  Pascal Obry  <obry@adacore.com>

	* mingw32.h: Add S2WSC and WS2SC macros to convert to/from
	CurrentCodePage.

	* adaint.h: Encoding_Unspecified is now defined. Corresponds to the
	value when no encoding form paramter is set on Text_IO services.

	* adaint.c: CurrentCodePage new variable on Windows.
	Use new macros S2WSC and WS2SC instead of the UTF-8 oriented
	ones.

	* mkdir.c: Use new macros S2WSC and WS2SC instead of the UTF-8 oriented
	ones.

	* initialize.c: Initialize CurrentCodePage depending on GNAT_CODE_PAGE
	environment variable value. Default is UTF-8.

	* s-crtl.ads: Filename_Encoding add Unspecified in the enumeration type.
	fopen and freopen encoding parameter is now set to Unspecified.
	The default value is in this case UTF-8 (as it was before) but
	use the new macros that convert to/from the code page set
	at runtime (CurrentCodePage).

	* s-fileio.adb: When no encoding specified use Unspecified value.

2009-04-17  Ed Schonberg  <schonberg@adacore.com>

	* atree.adb, atree.ads: Remove dead code.

From-SVN: r146235