In the dmrpp_module/testsuite/bes.conf.in file both the runtime loadable modules 

• libdmrpp_module.so
• libbuilddmrpp_module.so

are loaded into besstandalone from the bes.conf file in the modules/dmrpp_module /testsuite directory. This causes ODR violations to be detected by ASAN. The first error encountered is the redefinition of http/HttpError.cc 

The obvious fix here is to simply eliminate the use of libbuilddmrpp_module.so from the bes.conf.in because it's not used in these tests. I removed it and ASAN was happy and all the tests behaved as expected.

But it is an outstanding question as to why this ODR violation happened given that we load lots of modules. Is this something we need to address in how we structure our build/deployment?

Inquiring minds want to know.