[Bug debug/86964] [7/8 Regression] Too many debug symbols included, especially for extern globals

[patrickdepinguin at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86964

--- Comment #17 from Thomas De Schampheleire <patrickdepinguin at gmail dot 
com> ---
Thanks, see:
https://gcc.gnu.org/ml/gcc-patches/2019-05/msg00922.html