2011-05-25  Paolo Carlini  <paolo.carlini@oracle.com>

	* config/abi/pre/gnu.ver: Export recently added  basic_streambuf
	and basic_stringbuf symbols @3.4.17.
	* configure.ac: Update.
	* testsuite/util/testsuite_abi.cc: Likewise.
	* configure: Regenerate.

From-SVN: r174242