[patch libstdc++]: Fix LLP64 pointer-size issues for cxxabi, eh_alloc, and hash_bytes

[Marc Glisse]

On Fri, 21 Dec 2012, Kai Tietz wrote:

> 2012-12-21  Kai Tietz
>
> 	* config/os/mingw32/os_defines.h (_GLIBCXX_LLP64): Define if llp64
> 	abi is used.
> 	* config/os/mingw32-w64/os_defines.h: Likewise.
> 	* libsupc++/cxxabi.h (__base_class_type_info): Change
> 	type __offset_flags to intptr_t.

Don't you want to make it a ptrdiff_t directly and remove the later cast?

> 	* libsupc++/eh_alloc.cc (EMERGENCY_OBJ_SIZE): Define proper
> 	for llp64 abi.
> 	(EMERGENCY_OBJ_COUNT): Likewise.
> 	(bitmask_type): Likewise.
> 	* ibsupc++/hash_bytes.cc (_Hash_bytes): Handle llp64.