Bug#952628: hepmc3: FTBFS: Feature.h:296:69: internal compiler error: in get_fns, at cp/tree.c:2455

[Adrian Bunk]

Control: reassign -1 gcc-9 9.2.1-28
Control: affects -1 src:hepmc3

Looks like a gcc regression somewhere after 9.2.1-24 and no later than 9.2.1-28:
https://tests.reproducible-builds.org/debian/rb-pkg/unstable/amd64/hepmc3.html

cu
Adrian