[multiple changes]

2013-02-06  Gary Dismukes  <dismukes@adacore.com>

	* sem_ch6.adb (Check_For_Primitive_Subprogram): Test for
	the special case of a user-defined equality that overrides
	the predefined equality of a nonderived type declared in a
	declarative part.
	* sem_util.adb (Collect_Primitive_Operations): Add test for
	Is_Primitive when looping over the subprograms following a type,
	to catch the case of primitives such as a user-defined equality,
	which otherwise won't be found when the type is not a derived
	type and is declared in a declarative part.

2013-02-06  Vincent Celier  <celier@adacore.com>

	* prj-conf.adb (Check_Target): Always return True when Target
	is empty (Get_Or_Create_Configuration_File.Get_Project_Target):
	New procedure to get the value of attribute Target in the main
	project.
	(Get_Or_Create_Configuration_File.Do_Autoconf): No
	need to get the value of attribute Target in the main project.
	(Get_Or_Create_Configuration_File): Call Get_Project_Target and
	use the target fom this call.

2013-02-06  Eric Botcazou  <ebotcazou@adacore.com>

	* erroutc.adb (Validate_Specific_Warning): Do not issue the
	warning about an ineffective Pragma Warnings for -Wxxx warnings.
	* sem_prag.adb (Analyze_Pragma) <Warnings>: Accept -Wxxx warnings.
	* gnat_rm.texi (Pragma Warnings): Document coordination with
	warnings of the GCC back-end.

From-SVN: r195786