Gamma tests failing on Ubuntu 18.04

[bgoodri]

One Compiler Per OS

I clone a fresh math repo, here’s my Ubuntu: krzysztof@sph-3s9bjl2linu:~/packages/math$ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=16.04 DISTRIB_CODENAME=xenial DISTRIB_DESCRIPTION="Ubuntu 16.04.4 LTS" I tried the specific clang+±6.0 you have failing and it works: krzysztof@sph-3s9bjl2linu:~/packages/math$ clang++-6.0 -Wall -I . -isystem lib/eigen_3.3.3 -isystem lib/boost_1.66.0 -isystem lib/sundials_3.1.0/include -std=c++1y -DBOOST_RESULT_OF_USE_TR1 -DBOOST_NO_DECLTYPE -DBOOST_D…