msvcrt: Call nextafter in nexttoward implementation.

configure

@@ -19640,7 +19640,6 @@ for ac_func in \
 	log1pf \
 	log2 \
 	log2f \
-	nexttoward \
 	nexttowardf \
 	remainder \
 	remainderf \

configure.ac

@@ -2680,7 +2680,6 @@ AC_CHECK_FUNCS(\
 	log1pf \
 	log2 \
 	log2f \
-	nexttoward \
 	nexttowardf \
 	remainder \
 	remainderf \

dlls/msvcrt/math.c

@@ -3487,13 +3487,7 @@ float CDECL nearbyintf(float x)
  */
 double CDECL MSVCRT_nexttoward(double num, double next)
 {
-    double ret = unix_funcs->nexttoward(num, next);
-    if (!(_fpclass(ret) & (_FPCLASS_PN | _FPCLASS_NN
-            | _FPCLASS_SNAN | _FPCLASS_QNAN)) && !isinf(num))
-    {
-        *_errno() = ERANGE;
-    }
-    return ret;
+    return _nextafter(num, next);
 }
 
 /*********************************************************************

dlls/msvcrt/unixlib.c

@@ -548,19 +548,6 @@ static float CDECL unix_modff( float x, float *iptr )
 }
 
 /*********************************************************************
- *      nexttoward
- */
-static double CDECL unix_nexttoward(double num, double next)
-{
-#ifdef HAVE_NEXTTOWARD
-    return nexttoward(num, next);
-#else
-    FIXME("not implemented\n");
-    return 0;
-#endif
-}
-
-/*********************************************************************
  *      nexttowardf
  */
 static float CDECL unix_nexttowardf(float num, double next)
@@ -806,7 +793,6 @@ static const struct unix_funcs funcs =
     unix_logbf,
     unix_modf,
     unix_modff,
-    unix_nexttoward,
     unix_nexttowardf,
     unix_pow,
     unix_powf,

dlls/msvcrt/unixlib.h

@@ -72,7 +72,6 @@ struct unix_funcs
     float           (CDECL *logbf)(float x);
     double          (CDECL *modf)(double x, double *iptr);
     float           (CDECL *modff)(float x, float *iptr);
-    double          (CDECL *nexttoward)(double x, double y);
     float           (CDECL *nexttowardf)(float x, double y);
     double          (CDECL *pow)(double x, double y);
     float           (CDECL *powf)(float x, float y);

include/config.h.in

@@ -567,9 +567,6 @@
 /* Define to 1 if you have the <net/route.h> header file. */
 #undef HAVE_NET_ROUTE_H
 
-/* Define to 1 if you have the `nexttoward' function. */
-#undef HAVE_NEXTTOWARD
-
 /* Define to 1 if you have the `nexttowardf' function. */
 #undef HAVE_NEXTTOWARDF