On 2017-04-25, at 9:53 AM, db wrote: > On 22 Apr 2017, at 23:05, Ken Cunningham <ken.cunningham.web...@gmail.com> > wrote: >> because cxx_stdlib will equal libc++ and therefore this test (which would >> lead to the code that does the whitelisting) will fail. > > Bear with me — what I actually had in mind was, since we have > LibcxxOnOlderSystems instructions, why doesn't it explicitly test against > libc++?
Hi db, I am under the impression from your description that one of your systems was unmodified (and therefore by default set to libstdc++) and this was the system that was whitelisting clang-4.0 as it should, as per the cxx11 1.1 portgroup for qt5. The other system had been set to libc++, and in addition was set to default_compilers clang-3.9, and this was the system that was calling for clang-3.9, as it should. Do I misunderstand? Best, Ken