2013-04-11  Eric Botcazou  <ebotcazou@adacore.com>

	* init.c (RETURN_ADDR_OFFSET): Delete as unused.

2013-04-11  Robert Dewar  <dewar@adacore.com>

	* a-crbtgk.adb, a-ciorse.adb, a-crbtgo.adb, a-coorse.adb, a-rbtgbo.adb,
	a-cborse.adb, a-rbtgso.adb, exp_ch3.adb: Minor reformatting.

2013-04-11  Yannick Moy  <moy@adacore.com>

	* exp_ch4.adb (Expand_N_Selected_Component): Do not expand
	discriminant check for Unchecked_Union.
	* sem_res.adb (Resolve_Selected_Component): Set flag
	Do_Discriminant_Check even when expansion is not performed.
	* sinfo.ads (Do_Discriminant_Check): Update documentation for the case
	of Unchecked_Union.

2013-04-11  Thomas Quinot  <quinot@adacore.com>

	* sem_ch13.adb (Same_Representation): Two types with different scalar
	storage order never have the same representation.

2013-04-11  Arnaud Charlet  <charlet@adacore.com>

	* xgnatugn.adb (Push_Conditional): Simplify handling,
	no longer need to keep track of "excluding" sections.
	(Currently_Excluding): Removed.
	(Process_Source_File):
	Set unw/vms flag so that texinfo can do the whole handling of
	@ifset/@ifclear sections.  Fix handling of nested @ifset/@ifclear
	sections.
	* gnat_ugn.texi: Add a section on performing unassisted install
	on Windows.

From-SVN: r197785