2012-05-15  Tristan Gingold  <gingold@adacore.com>

	* exp_ch7.adb (Build_Exception_Handler): Save current
	occurrence only if -gnateE.
	(Build_Object_Declaration): Declare E_Id only if -gnateE.
	(Build_Raise_Statement): Call Raise_From_Controlled_Operation only if
	-gnateE (else raise PE).
	* s-soflin.adb (Save_Library_Occurrence): Handle null occurrence
	access.
	* a-except-2005.adb (Reraise_Library_Exception_If_Any): Call
	Raise_From_Controlled_Operation only if the saved occurrence is
	not null, otherwise raise PE.

2012-05-15  Yannick Moy  <moy@adacore.com>

	* exp_alfa.ads: Add comments describing the Alfa mode.

From-SVN: r187514