* mingwex/feclearexcept.c (feclearexcept): Change declaration.

	* mingwex/feclearexcept.c (feclearexcept): Change declaration.
	Do not return a value.
	* mingwex/fegetexceptflag.c (fegetexceptflag): Likewise.
	* mingwex/feraiseexcept.c (feraiseexcept): Likewise.
	* mingwex/fesetexceptflag.c (fesetexceptflag): Likewise.
	* mingwex/fegetenv.c (fegetenv): Likewise.
	* mingwex/fesetenv.c (fesetenv): Likewise.
	* mingwex/feupdateenv.c (feupdateenv): Likewise.
	* include/fenv.h (feclearexcept, fegetexceptflag, feraiseexcept,
	fesetexceptflag, fegetenv, fesetenv, feupdateenv): Correct
	prototypes.