2008-08-06 Jerome Lambourg <lambourg@adacore.com>

	* g-comlin.adb (Define_Switch, Get_Switches): New.
	(Can_Have_Parameter, Require_Parameter, Actual_Switch): New, used when
	ungrouping switches.
	(For_Each_Simple_Switch): Allow more control over parameters handling.
	This generic method now allows ungrouping of switches with parameters
	and switches with more than one letter after the prefix.
	(Set_Command_Line): Take care of switches that are prefixed with a
	switch handling parameters without delimiter (-gnatya and -gnaty3 for
	example).
	(Add_Switch, Remove_Switch): Handle parameters possibly present inside
	a group, as in gnaty3aM80 (3 and 80 are parameters). Report status of
	the operation.
	(Start, Alias_Switches, Group_Switches): Take care of parameters
	possibly present inside a group.

	* g-comlin.ads (Define_Switch): New method used to define a list of
	expected switches, that are necessary for correctly ungrouping switches
	with more that one character after the prefix.
	(Get_Switches): Method that builds a getopt string from the list of
	switches as set previously by Define_Switch.
	(Add_Switch, Remove_Switch): New versions of the methods, reporting the
	status of the operation. Also allow the removal of switches with
	parameters only.
	(Command_Line_Configuration_Record): Maintain a list of expected
	switches.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@138775 138bc75d-0d04-0410-961f-82ee72b054a4

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