PR other/40302
	* gcc.dg/torture/builtin-math-6.c: Assume we have MPC.
	* gcc.dg/torture/builtin-math-7.c: Likewise.
	* gfortran.dg/complex_intrinsic_7.f90: Likewise.
	* gfortran.dg/complex_intrinsic_8.f90: Likewise.
	* gfortran.dg/integer_exponentiation_4.f90: Re-enable some tests.
	* lib/target-supports.exp (check_effective_target_mpc,
	check_effective_target_mpc_pow, check_effective_target_mpc_arc):
	Delete.

From-SVN: r155045