* gcc.dg/compat/compat-common.h (CINT, CDBL): Define.
	* gcc.dg/compat/scalar-return-3_x.c: Use it.
	* gcc.dg/compat/scalar-return-3_y.c: Use it.
	* gcc.dg/compat/scalar-return-4_x.c: Use it.
	* gcc.dg/compat/scalar-return-4_y.c: Use it.
	* gcc.dg/compat/scalar-by-value-3_x.c: Use it.
	* gcc.dg/compat/scalar-by-value-3_y.c: Use it.
	* gcc.dg/compat/scalar-by-value-4_x.c: Use it.
	* gcc.dg/compat/scalar-by-value-4_y.c: Use it.

From-SVN: r83370