updated for version 7.4.062

Problem:    Configure check for AvailabilityMacros.h is wrong.
Solution:   Use AC_CHECK_HEADERS().

src/version.c

@@ -738,6 +738,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    62,
 /**/
     61,
 /**/