** Test whether these are also needed for rosload

boot/freeldr/freeldr/ntldr/winldr.c

@@ -1359,3 +1359,52 @@ WinLdrpDumpArcDisks(PLOADER_PARAMETER_BLOCK LoaderBlock)
         NextBd = ArcDisk->ListEntry.Flink;
     }
 }
+
+/////////////////////////////////////////
+
+// We need to emulate these, because the original ones don't work in freeldr
+// These functions are here, because they need to be in the main compilation unit
+// and cannot be in a library.
+int __cdecl wctomb(char *mbchar, wchar_t wchar)
+{
+    *mbchar = (char)wchar;
+    return 1;
+}
+
+int __cdecl mbtowc(wchar_t *wchar, const char *mbchar, size_t count)
+{
+    *wchar = (wchar_t)*mbchar;
+    return 1;
+}
+
+// The wctype table is 144 KB, too much for poor freeldr
+int __cdecl iswctype(wint_t wc, wctype_t wctypeFlags)
+{
+    return _isctype((char)wc, wctypeFlags);
+}
+
+#ifdef _MSC_VER
+#pragma warning(disable:4164)
+#pragma function(pow)
+#pragma function(log)
+#pragma function(log10)
+#endif
+
+// Stubs to avoid pulling in data from CRT
+double pow(double x, double y)
+{
+    __debugbreak();
+    return 0.0;
+}
+
+double log(double x)
+{
+    __debugbreak();
+    return 0.0;
+}
+
+double log10(double x)
+{
+    __debugbreak();
+    return 0.0;
+}