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

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

	* opt.ads, opt.adb: New flags for persistent_bss mode
	Add Ada_Version_Explicit, for implementation of AI-362
	Add Assertions_Enabled_Config and associated handling
	Needed since setting can be changed with Assertion_Policy pragma
	Add new flag Warn_On_Ada_2005_Compatibility

	* switch-c.adb: Recognize -gnatwy/Y
	Set Ada_Version_Explicit, for implementation of AI-362
	The -gnatg switch now includes -gnatyu

	* usage.adb: Add -gnatwy/Y
	Remove wrong asterisk on -gnatwX line
	Add line for -gnatyu switch

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@101049 138bc75d-0d04-0410-961f-82ee72b054a4