[Bug libstdc++/78979] 27_io/headers/cstdio/functions_neg.cc FAILs on Solaris

[ro at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78979

--- Comment #6 from Rainer Orth <ro at gcc dot gnu.org> ---
Fixed for gcc 7.1.0.