[Bug libstdc++/68397] std::tr1::expint fails in __expint_En_cont_frac for some long double arguments due to low __max_iter value

[emsr at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68397

--- Comment #5 from emsr at gcc dot gnu.org ---
We fixed this a long time ago.