[Bug preprocessor/58893] [4.8/4.9 Regression] :0:0: internal compiler error: Segmentation fault

[trippels at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58893

--- Comment #13 from Markus Trippelsdorf <trippels at gcc dot gnu.org> ---
Backports of your fix would be appreciated.