[Bug bootstrap/68540] 6.0 build process broken on Linux Mint, potential include ordering problem

[martin@mpa-garching.mpg.de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68540

--- Comment #1 from Martin Reinecke <martin@mpa-garching.mpg.de> ---
I should probably add that building the trunk was possible without any problems
on Linux Mint until about two weeks ago. Unfortunately I do not know yet how to
isolate the problematic commit ... will look into "git bisect" and post updates
if I have more information.