Joseph Myers c82f5c0ce5 Fix warning in setjmp/jmpbug.c. ...

This patch fixes a "set but not used" warning in setjmp/jmpbug.c.  A
variable is used only to store the result of alloca.  A cast to void
is added to avoid the warning, and the variable is made volatile to
ensure the call to alloca isn't optimized away for being unused.

Tested for x86_64.

	* setjmp/jmpbug.c (test): Make foo volatile and cast it to
	void.

2014-11-26 00:45:19 +00:00

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