gcc/
	* doc/sourcebuild.texi (Torture Tests): Add ADDITIONAL_TORTURE_OPTIONS.
gcc/testsuite/
	* lib/c-torture.exp: Use ADDITIONAL_TORTURE_OPTIONS if defined.
	* lib/gcc-dg.exp: Ditto.
	* lib/fortran-torture.exp: Ditto.
	* lib/objc-torture.exp: Ditto.

From-SVN: r141630