Changes to Sanitizers
---------------------
+* For Darwin users that override weak symbols, note that the dynamic linker will
+ only consider symbols in other mach-o modules which themselves contain at
+ least one weak symbol. A consequence is that if your program or dylib contains
+ an intended override of a weak symbol, then it must contain at least one weak
+ symbol as well for the override to be effective. That weak symbol may be the
+ intended override itself, an otherwise usused weak symbol added solely to meet
+ the requirement, or an existing but unrelated weak symbol.
+
+ Examples:
+ __attribute__((weak)) const char * __asan_default_options(void) {...}
+
+ __attribute__((weak,unused)) unsigned __enableOverrides;
+
+ __attribute__((weak)) bool unrelatedWeakFlag;
Other Changes
-------------