[Bug target/80556] [8 Regression] bootstrap failure for Ada compiler

[dominiq at lps dot ens.fr]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80556

--- Comment #49 from Dominique d'Humieres <dominiq at lps dot ens.fr> ---
The patch at https://gcc.gnu.org/ml/gcc-patches/2017-09/msg00045.html is still
needed after revision r252914 (fix for pr81361).