2006-10-31  Vincent Celier  <celier@adacore.com>
	    Eric Botcazou  <ebotcazou@adacore.com>

	* mlib-tgt-lynxos.adb, mlib-tgt-mingw.adb, mlib-tgt-tru64.adb,
	mlib-tgt-aix.adb, mlib-tgt-irix.adb, mlib-tgt-hpux.adb,
	mlib-tgt-linux.adb, mlib-tgt-solaris.adb: Use Append_To, instead of
	Ext_To, when building the library file name

	* mlib-tgt-vxworks.adb: ditto.
	(Get_Target_Suffix): Add support for x86 targets.

	* mlib-fil.ads, mlib-fil.adb: (Append_To): New function

	* mlib-tgt-darwin.adb: 
	Use Append_To, instead of Ext_To, when building the library file name
	(Flat_Namespace): New global variable.
	(No_Shared_Libgcc_Switch): Rename to No_Shared_Libgcc_Options.
	(Shared_Libgcc_Switch): Rename to With_Shared_Libgcc_Options.
	(Link_Shared_Libgcc): Delete.
	(Build_Dynamic_Library): Adjust for above changes.
	Use Opt package.
	(Build_Dynamic_Library): Pass -shared-libgcc if GCC 4 or later.

From-SVN: r118237