Disabled spurious Visual Studio warnings in the uClibc math code

src/libm/e_log.c

@@ -9,6 +9,11 @@
  * ====================================================
  */
 
+#if defined(_MSC_VER)           /* Handle Microsoft VC++ compiler specifics. */
+/* C4723: potential divide by zero. */
+#pragma warning ( disable : 4723 )
+#endif
+
 /* __ieee754_log(x)
  * Return the logrithm of x
  *