Hi. I tripped across this bug. FYI: I tried to apply the patches openmpi4 and openmpi4-2 and they didn't seem to help. I got the same build error.
I also looked for the "drop-MPI-1-support.patch" that Sebastian mentioned. I downloaded valgrind (1:3.11.0-1ubuntu4.2) xenial-security but it didn't seem to contain that patch. Ian. -- Ian Jackson <ijack...@chiark.greenend.org.uk> These opinions are my own. If I emailed you from an address @fyvzl.net or @evade.org.uk, that is a private address which bypasses my fierce spamfilter.
