OK, so I've uploaded a new mpqc3 package which excludes the problematic check in external/Libint, but it stills FTBFS - there's been too much APi breakage between beta2 and final apparently and mpqc3 has not been ported yet. Which is kinda annoying cause both are maintained by the same upstream authors.
I'll see whether I can do something myself about this, but I'm no specialist in this kind of C++. In any case, it seems those issues about missing math headers no longer shows up? Oh, I now checked again and mips64el and hppa seems to exhibit that behaviour still: https://buildd.debian.org/status/fetch.php?pkg=mpqc3&arch=mips64el&ver=0.0~git20160216-5&stamp=1475465771 https://buildd.debian.org/status/fetch.php?pkg=mpqc3&arch=hppa&ver=0.0%7Egit20160216-5&stamp=1475461952 So maybe this bug should get unmerged and reopened, and a second one about the 2.1.0 final libint2 interface opened, bah. Michael