[Bug regression/58603] [4.9 Regression] hash-table.h:962: error: anachronistic old-style base class initia

[rsandifo at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58603

--- Comment #6 from rsandifo at gcc dot gnu.org <rsandifo at gcc dot gnu.org> 
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(In reply to dave.anglin from comment #5)
> KDE added a trailing underscore to work around this issue.

Seems easier just to #undef m_slot for hpux in system.h.