Minor Win32 compile fixes for 4.1.16 release.

sql/log_event.cc:
  Add missing cast needed for Win32 compilation.
include/config-win.h:
  Win32 compile fix: quote multi-line macros with do { ... } while(0) to follow earlier changes in my_global.h.

include/config-win.h

@@ -278,10 +278,10 @@ inline double ulonglong2double(ulonglong value)
 			  *((T)+4)=(uchar) (((A) >> 32)); }
 #define int8store(T,A)	*((ulonglong *) (T))= (ulonglong) (A)
 
-#define doubleget(V,M)	{ *((long *) &V) = *((long*) M); \
-			  *(((long *) &V)+1) = *(((long*) M)+1); }
-#define doublestore(T,V) { *((long *) T) = *((long*) &V); \
-			   *(((long *) T)+1) = *(((long*) &V)+1); }
+#define doubleget(V,M)	do { *((long *) &V) = *((long*) M); \
+			    *(((long *) &V)+1) = *(((long*) M)+1); } while(0)
+#define doublestore(T,V) do { *((long *) T) = *((long*) &V); \
+			      *(((long *) T)+1) = *(((long*) &V)+1); } while(0)
 #define float4get(V,M) { *((long *) &(V)) = *((long*) (M)); }
 #define floatget(V,M) memcpy((byte*) &V,(byte*) (M),sizeof(float))
 #define floatstore(T,V) memcpy((byte*)(T), (byte*)(&V), sizeof(float))

sql/log_event.cc

@@ -2035,7 +2035,7 @@ Rotate_log_event::Rotate_log_event(THD* thd_arg,
                       llstr(pos_arg, buff), flags));
 #endif
   if (flags & DUP_NAME)
-    new_log_ident= my_strdup_with_length(new_log_ident_arg,
+    new_log_ident= my_strdup_with_length((byte*) new_log_ident_arg,
                                          ident_len,
                                          MYF(MY_WME));
   DBUG_VOID_RETURN;