* mingwex/fe*.c: Revert previous changes.

* include/fenv.h: Revert previous changes.

	Add Changelog entry for the reverted change.

winsup/mingw/mingwex/feupdateenv.c

@@ -10,10 +10,11 @@
 
 /* FIXME: this works but surely there must be a better way.  */
 
-void feupdateenv (const fenv_t * envp)
+int feupdateenv (const fenv_t * envp)
 {
   unsigned int _fexcept = fetestexcept (FE_ALL_EXCEPT); /*save excepts */
   fesetenv (envp); /* install the env  */
   feraiseexcept (_fexcept); /* raise the execept */
+  return 0;
 }