2005-06-14  Robert Dewar  <dewar@adacore.com>

	* system-unixware.ads, system-linux-ia64.ads, system-freebsd-x86.ads,
	system-lynxos-ppc.ads, system-lynxos-x86.ads, system-linux-x86_64.ads,
	system-tru64.ads, system-aix.ads, system-vxworks-sparcv9.ads,
	system-vxworks-xscale.ads, system-solaris-x86.ads, system-irix-o32.ads,
	system-irix-n32.ads, system-hpux.ads, system-vxworks-m68k.ads,
	system-linux-x86.ads, system-vxworks-mips.ads, system-vxworks-mips.ads,
	system-os2.ads, system-interix.ads, system-solaris-sparc.ads,
	system-solaris-sparcv9.ads, system-vms.ads, system-mingw.ads,
	system-vms-zcx.ads, system-vxworks-ppc.ads, system.ads,
	system-darwin-ppc.ads, system-vxworks-x86.ads, system-linux-ppc.ads,
	system-linux-hppa.ads, system-vms_64.ads,
	system-vxworks-alpha.ads: Minor comment update for
	AI-362 (unit is Pure).

	* a-chahan.ads, a-chahan.adb: Move Wide_Wide functions to Conversions
	Add pragma Pure_05 for AI-362
	Make remaining conversion functions obsolescent in Ada 95

	* impunit.adb: Change a-swunha to a-swuwha and a-szunha to a-szuzha
	Make Ada.Wide_Characters[.Unicode] available in Ada 95 mode
	Add entries for a-wichun and a-zchuni
	Add a-widcha a-zchara for AI-395
	Add a-chacon (Ada.Characters.Conversions) to list of Ada 2005 routines

	* Makefile.rtl: Change a-swunha to a-swuwha and a-szunha to a-szuzha
	Add entries for a-wichun.o and a-zchuni.o
	Entries for a-widcha.o and a-zchara.o
	Add entry for a-chacon.o

	* a-ztenau.adb: Add with of Ada.Characters.Conversions

	* a-chacon.ads, a-chacon.adb: New files.

	* a-taside.adb, a-exstat.adb, a-excach.adb: Add warnings off to allow
	categorization violations.

	* a-strmap.ads: Add pragma Pure_05 for AI-362
	* a-strmap.ads: Add note on implicit categorization for AI-362

	* a-tgdico.ads, a-taside.ads: Add pragma Preelaborate_05 for AI-362

	* par-prag.adb: Dummy entry for pragma Persistent_BSS
	Set Ada_Version_Explicit, for implementation of AI-362
	Add processing for pragma Pure_05 and Preelaborate_05
	Add entry for Assertion_Policy pragma

	* sem.adb: Make sure predefined units are compiled with GNAT_Mode true
	when needed for proper processing of categorization stuff

	* sem_cat.adb:
	For several cases, make errors in preealborate units warnings,
	instead of errors, if GNAT_Mode is set. For AI-362.

	* sem_elab.adb (Check_Elab_Call): Call to non-static subprogram in
	preelaborate unit is now warning if in GNAT mode

	* s-stoele.ads: Document AI-362 for pragma preelaborate

From-SVN: r101016