2010-10-26 Vincent Celier <celier@adacore.com>

2010-10-26  Vincent Celier  <celier@adacore.com>

	* opt.ads (Checksum_Accumulate_Token_Checksum): New Boolean flag,
	defaulted to True.
	(Checksum_GNAT_6_3): New name of Old_Checksums
	(Checksum_GNAT_5_03): New name of Old_Old_Checksums
	* prj-nmsc.adb (Process_Project_Level_Array_Attributes): Adapt to new
	names of Opt flags.
	Set Checksum_Accumulate_Token_Checksum to False if GNAT version is 5.03
	or before.
	* scng.adb (Accumulate_Token_Checksum_GNAT_6_3): New name of procedure
	Accumulate_Token_Checksum_Old.
	(Accumulate_Token_Checksum_GNAT_5_03): New name of procedure
	Accumulate_Token_Checksum_Old_Old.
	(Nlit): Call Accumulate_Token_Checksum only if
	Opt.Checksum_Accumulate_Token_Checksum is True.
	(Scan): Ditto

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@165961 138bc75d-0d04-0410-961f-82ee72b054a4