[Qemu-devel] libvhost-user: undefined reference to MADV_NOHUGEPAGE

[Sandra Loosemore]

Yesterday I tried to build the recent 4.1 release system-mode QEMU for 
aarch64-none-elf and ran into a compilation error in 
./contrib/libvhost-user/libvhost-user.c.  It's complaining about 
MADV_NOHUGEPAGE not being defined.  I'm not familiar with that code or 
even what it does; should that bit of logic be made conditional on 
MADV_NOHUGEPAGE being defined, or is this indicative of a configuration 
error for this target?  I see the unguarded reference was also present 
in the 3.0 release so it seems like whatever changed is somewhere else, 
and I don't know where to look for it or what I should be looking for. 
:-S  Does this sound familiar to anyone else?

-Sandra