msvcrt: Import llroundf implementation from musl.

configure

@@ -19636,7 +19636,6 @@ for ac_func in \
 	llrint \
 	llrintf \
 	llround \
-	llroundf \
 	log1p \
 	log1pf \
 	log2 \

configure.ac

@@ -2679,7 +2679,6 @@ AC_CHECK_FUNCS(\
 	llrint \
 	llrintf \
 	llround \
-	llroundf \
 	log1p \
 	log1pf \
 	log2 \

dlls/msvcrt/math.c

@@ -4384,10 +4384,17 @@ __int64 CDECL llround(double x)
 
 /*********************************************************************
  *      llroundf (MSVCR120.@)
+ *
+ * Copied from musl: src/math/llroundf.c
  */
 __int64 CDECL llroundf(float x)
 {
-    return unix_funcs->llroundf( x );
+    float f = roundf(x);
+    if (f != (float)(__int64)f) {
+        *_errno() = EDOM;
+        return 0;
+    }
+    return f;
 }
 
 /*********************************************************************

dlls/msvcrt/unixlib.c

@@ -802,18 +802,6 @@ static __int64 CDECL unix_llround(double x)
 }
 
 /*********************************************************************
- *      llroundf
- */
-static __int64 CDECL unix_llroundf(float x)
-{
-#ifdef HAVE_LLROUNDF
-    return llroundf(x);
-#else
-    return unix_llround(x);
-#endif
-}
-
-/*********************************************************************
  *      sin
  */
 static double CDECL unix_sin( double x )
@@ -969,7 +957,6 @@ static const struct unix_funcs funcs =
     unix_llrint,
     unix_llrintf,
     unix_llround,
-    unix_llroundf,
     unix_log,
     unix_logf,
     unix_log10,

dlls/msvcrt/unixlib.h

@@ -63,7 +63,6 @@ struct unix_funcs
     __int64         (CDECL *llrint)(double x);
     __int64         (CDECL *llrintf)(float x);
     __int64         (CDECL *llround)(double x);
-    __int64         (CDECL *llroundf)(float x);
     double          (CDECL *log)(double x);
     float           (CDECL *logf)(float x);
     double          (CDECL *log10)(double x);

include/config.h.in

@@ -462,9 +462,6 @@
 /* Define to 1 if you have the `llround' function. */
 #undef HAVE_LLROUND
 
-/* Define to 1 if you have the `llroundf' function. */
-#undef HAVE_LLROUNDF
-
 /* Define to 1 if you have the `log1p' function. */
 #undef HAVE_LOG1P