2010-02-22  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/functional_hash.h (hash<string>, hash<wstring>,
	hash<u16string>, hash<u32string>, hash<error_code>): Move, per
	DR 1182 to...
	* include/bits/basic_string.h: ... here.
	* include/std/system_error: ... and here, respectively.
	* src/hash-aux.cc (hash<long double>::operator()(long double)):
	Move definition...
	* src/hash_c++0x.cc: ... here, new file.
	* src/hash_tr1.cc: ... and here, tweak includes.
	* src/compatibility-c++0x.cc (hash, _Fnv_hash): Remove.
	* src/Makefile.am: Adjust.
	* src/Makefile.in: Regenerate.
	* include/std/functional: Include <bits/functexcept.h>.
	* include/std/unordered_set: Remove redundant include.
	* include/std/unordered_map: Likewise.
	* include/tr1/functional_hash.h: Remove spurious trailing semicolon.
	* testsuite/20_util/weak_ptr/comparison/cmp_neg.cc: Remove
	dg-excess.

From-SVN: r156971