Added dummy function for MSC

Author: czurnieden

mp_printf_extension.c

@@ -4,7 +4,16 @@
 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
 /* SPDX-License-Identifier: Unlicense */
 
-/* TOD: find min version of glibc. Seems to be >2.9, check */
+#ifdef _MSC_VER
+static int s_mp_print_mp_int(FILE *stream,  const struct printf_info *info,  const void *const *args){
+   (void)(stream);
+   (void)(info);
+   (void)(args);
+   return MP_VAL;
+}
+#else
+
+/* TODO: find min version of glibc. Seems to be >2.9, check */
 #if (!(defined MP_NO_FILE) && (defined __GLIBC__))
 #include <printf.h>
 static int s_mp_print_mp_int(FILE *stream,  const struct printf_info *info,  const void *const *args)
@@ -112,3 +121,4 @@ mp_err mp_printf_extension(void)
 }
 #endif
 #endif
+#endif