2007-04-06  Vincent Celier  <celier@adacore.com>

	* errutil.adb (Initialize): Initialize warnings table, if all warnings
	are suppressed, supply an initial dummy entry covering all possible
	source locations.

	* make.adb (Scan_Make_Arg): Reject options that should start with "--"
	and start with only one, such as "-RTS=none".
	(Collect_Arguments): Do not check for sources outside of projects.
	Do not collect arguments if project is externally built.
	(Compile_Sources): Do nothing, not even check if the source is up to
	date, if its project is externally built.
	(Compile): When compiling a predefined source, add -gnatpg
	as the second switch, after -c.
	(Compile_Sources): Allow compilation of Annex J renames without -a
	(Is_In_Object_Directory): Check if the ALI file is in the object
	even if there is no project extension.
	(Create_Binder_Mapping_File): Only put a unit in the mapping file for
	gnatbind if the ALI file effectively exists.
	(Initialize): Add the directory where gnatmake is invoked in front of
	the path if it is invoked from a bin directory, even without directory
	information, so that the correct GNAT tools will be used when spawned
	without directory information.

	* makeusg.adb: Change switch -S to -eS
	Add lines for new switches -we, -wn and -ws
	Add line for new switch -p

	* prj-proc.adb (Process): Set Success to False when Warning_Mode is
	Treat_As_Error and there are warnings.

	* switch-m.ads, switch-m.adb (Normalize_Compiler_Switches): Do not skip
	-gnatww Change gnatmake switch -S to -eS
	(Scan_Make_Switches): Code reorganisation. Process separately multi
	character switches and single character switches.
	(Scan_Make_Switches): New Boolean out parameter Success. Set Success to
	False when switch is not recognized by gnatmake.
	(Scan_Make_Switches): Set Setup_Projects True when -p or
	--create-missing-dirs is specified.

	* fname.adb (Is_Predefined_File_Name): Return True for annex J
	renamings Calendar, Machine_Code, Unchecked_Conversion and
	Unchecked_Deallocation only when Renamings_Included is True.

	* par.adb: Allow library units Calendar, Machine_Code,
	Unchecked_Conversion and Unchecked_Deallocation to be recompiled even
	when -gnatg is not specified.
	(P_Interface_Type_Definition): Remove the formal Is_Synchronized because
	there is no need to generate always a record_definition_node in case
	of synchronized interface types.
	(SIS_Entry_Active): Initialize global variable to False
	(P_Null_Exclusion): For AI-447: Add parameter Allow_Anonymous_In_95 to
	indicate cases where AI-447 says "not null" is legal.

	* makeutl.ads, makeutil.adb (Executable_Prefix_Path): New function

	* makegpr.adb (Check_Compilation_Needed): Take into account dependency
	files with with several lines starting with the object fileb name.
	(Scan_Arg): Set Setup_Projects True when -p or --create-missing-dirs
	is specified.
	(Initialize): Add the directory where gprmake is invoked in front of the
	path, if it is invoked from a bin directory or with directory
	information, so that the correct GNAT tools will be used when invoked
	directly.
	(Check_Compilation_Needed): Process correctly backslashes on Windows.

	* vms_data.ads: Update switches/qualifiers

From-SVN: r123560