2013-01-02  Robert Dewar  <dewar@adacore.com>

	* err_vars.ads (Warning_Doc_Switch): New flag.
	* errout.adb (Error_Msg_Internal): Implement new warning flag
	doc tag stuff (Set_Msg_Insertion_Warning): New procedure.
	* errout.ads: Document new insertion sequences ?? ?x? ?.x?
	* erroutc.adb (Output_Msg_Text): Handle ?? and ?x? warning doc
	tag stuff.
	* erroutc.ads (Warning_Msg_Char): New variable.
	(Warn_Chr): New field in error message object.
	* errutil.adb (Error_Msg): Set Warn_Chr in error message object.
	* sem_ch13.adb: Minor reformatting.
	* warnsw.adb: Add handling for -gnatw.d and -gnatw.D
	(Warning_Doc_Switch).
	* warnsw.ads: Add handling of -gnatw.d/.D switches (warning
	doc tag).

2013-01-02  Robert Dewar  <dewar@adacore.com>

	* opt.ads: Minor reformatting.

2013-01-02  Doug Rupp  <rupp@adacore.com>

	* init.c: Reorganize VMS section.
	(scan_condtions): New function for scanning condition tables.
	(__gnat_handle_vms_condtion): Use actual exception name for imported
	exceptions vice IMPORTED_EXCEPTION.
	Move condition table scanning into separate function. Move formerly
	special handled conditions to system condition table. Use SYS$PUTMSG
	output to fill exception message field for formally special handled
	condtions, in particular HPARITH to provide more clues about cause and
	location then raised from the translated image.

From-SVN: r194784