Created attachment 374110 [details]
build log for dev-util/valgrind-3.8.1
/usr/include/gnu/stubs.h:10:27: fatal error: gnu/stubs-64.h: No such file or directory
stubs.h should probably only include gnu/stubs-x32.h
you already know better -- you must post `emerge --info` in all of your bug reports. please stop forcing this round trip.
Created attachment 374194 [details]
If this bug is really about the forced "-m64":
Valgrind uses "-m64" intentionally, because upstream support for x32 is still missing: https://bugs.kde.org/show_bug.cgi?id=344401
When/if x32 isn't supported, it just shouldn't IUSE the ABI=x32 option.