2011-09-05  Robert Dewar  <dewar@adacore.com>

	* sem_ch6.adb: Minor reformatting.

2011-09-05  Matthew Gingell  <gingell@adacore.com>

	* s-tassta.adb (Task_Wrapper): Ensure that we don't try to write the
	stack guard page on PPC Linux. This patch ensures the 64K guard page at
	the bottom of the stack is not overwritten.

From-SVN: r178544