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

* include/fenv.h: Revert previous changes.

	Add Changelog entry for the reverted change.

winsup/mingw/mingwex/feclearexcept.c

@@ -4,10 +4,12 @@
    The feclearexcept function clears the supported exceptions
    represented by its argument.  */
 
-void feclearexcept (int excepts)
+int feclearexcept (int excepts)
 {
   fenv_t _env;
   __asm__ volatile ("fnstenv %0;" : "=m" (_env)); /* get the env */
   _env.__status_word &= ~(excepts & FE_ALL_EXCEPT); /* clear the except */
   __asm__ volatile ("fldenv %0;" :: "m" (_env)); /*set the env */
+
+  return 0;
 }

winsup/mingw/mingwex/fegetenv.c

@@ -4,8 +4,9 @@
    The fegetenv function stores the current floating-point environment
    in the object pointed to by envp. */
 
-void fegetenv (fenv_t * envp)
+int fegetenv (fenv_t * envp)
 {
   __asm__ ("fnstenv %0;": "=m" (*envp));
+  return 0;
 }
 

winsup/mingw/mingwex/fegetexceptflag.c

@@ -6,9 +6,10 @@
    representation of the exception flags indicated by the argument
    excepts in the object pointed to by the argument flagp.  */
 
-void fegetexceptflag (fexcept_t * flagp, int excepts)
+int fegetexceptflag (fexcept_t * flagp, int excepts)
 {
   unsigned short _sw;
   __asm__ ("fnstsw %%ax;": "=a" (_sw));
   *flagp = _sw  & excepts & FE_ALL_EXCEPT;
+  return 0;
 }

winsup/mingw/mingwex/feraiseexcept.c

@@ -8,11 +8,12 @@
    the inexact exception whenever it raises the overflow
    or underflow exception is implementation-defined. */
 
-void feraiseexcept (int excepts)
+int feraiseexcept (int excepts)
 {
   fenv_t _env;
   __asm__ volatile ("fnstenv %0;" : "=m" (_env));
   _env.__status_word |= excepts & FE_ALL_EXCEPT;
   __asm__ volatile ("fldenv %0;"
 		    "fwait;" : : "m" (_env));
+  return 0;
 }

winsup/mingw/mingwex/fesetenv.c

@@ -13,7 +13,7 @@
 
 extern void (*_imp___fpreset)( void ) ;
 
-void fesetenv (const fenv_t * envp)
+int fesetenv (const fenv_t * envp)
 {
   if (envp == FE_PC64_ENV)
    /*
@@ -38,4 +38,6 @@ void fesetenv (const fenv_t * envp)
 
   else
     __asm__ ("fldenv %0;" : : "m" (*envp));
+
+  return 0;
 }

winsup/mingw/mingwex/fesetexceptflag.c

@@ -9,7 +9,7 @@
    represented by the argument excepts. This function does not raise
    exceptions, but only sets the state of the flags. */ 
 
-void fesetexceptflag (const fexcept_t * flagp, int excepts) 
+int fesetexceptflag (const fexcept_t * flagp, int excepts) 
 { 
   fenv_t _env;
 
@@ -18,4 +18,5 @@ void fesetexceptflag (const fexcept_t * flagp, int excepts)
   _env.__status_word &= ~excepts;
   _env.__status_word |= (*flagp & excepts);
   __asm__ volatile ("fldenv %0;" : : "m" (_env));
+  return 0;
 }

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;
 }