re PR libstdc++/89402 (warning: ‘void _ZNKSt4hashIeEclEe()’ specifies less restrictive attribute than its target)
PR libstdc++/89402
* src/c++98/compatibility-ldbl.cc (_ZNKSt4hashIeEclEe): Add
_GLIBCXX_PURE to the alias declaration.
From-SVN: r269034
