https://gcc.gnu.org/bugzilla/show_bug.cgi?id=94361
--- Comment #3 from Antony Lewis <antony at cosmologist dot info> --- On Windows 8.1.0 does not leak, and on NERSC 8.3.0 20190222 (Cray Inc.) also does not (but 9.2.0 does)... so not exactly sure what this means about when it was introduced.
