/cp
2010-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/30298
	* decl.c (xref_basetypes): Return false in case of ill-formed
	redefinition.

/testsuite
2010-05-20  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/30298
	* g++.dg/inherit/crash1.C: New.
	* g++.dg/inherit/crash2.C: Likewise.

From-SVN: r159637