Ah, the unlucky 2%. C'est la vie.
Such problems are generally always fixable, the equation being time vs benefit... K On 2017-09-16, at 8:38 PM, Ian Wadham wrote: > Hi Ken, > > On 14/09/2017, at 2:43 PM, Ken Cunningham wrote: >> Keeping a 10.7 machine going is always going to be more of a project than a >> new machine, but not necessarily hopeless. Upgrading to a Sierra machine is >> always the path of least resistance, if that is in your horizon. >> Nonetheless, there is _usually_ a way to keep your 10.7 machine running with >> _most_ open source software. No guarantees, though. >> >> For the simplest fix that requires the least amount of locally-built >> software and the least amount of time, do this: >> >> when you see a port that tells you something like: >> >> Error: akonadi does not support your selected MacPorts C++ runtime. libc++ >> must be selected and C++-based ports built against it. >> >> you can try the following: >> >> edit `port file akonadi` in your favourite editor, like vi or bbedit. You >> might need sudo. >> >> change the following line, usually near the top: >> >> PortGroup cxx11 1.0 >> >> to >> >> PortGroup cxx11 1.1 >> >> and then hope the Gods are smiling on you. I would say there is about a 98% >> chance it will "just work". If it does not work, then the next option is a >> wholesale change to libc++, which I did in the end, and I think that works >> the best. But there is currently no libc++ buildbot, so you'll have to build >> *everything*. That will take several days (and is also not guaranteed to >> work). > > FWIW, that did not work for me. It caused some new tools to be installed, > such as gcc6, after I had done "port clean akonadi" and "port install > akonadi", > then this time the error message was: > > :info:build Undefined symbols for architecture x86_64: > :info:build "std::runtime_error::runtime_error(char const*)", referenced > from: > :info:build boost::function1<void, std::string > const&>::operator()(std::string const&) const in > libakonadi_shared.a(akapplication.cpp.o) > :info:build ld: symbol(s) not found for architecture x86_64 > :info:build clang: error: linker command failed with exit code 1 (use -v to > see invocation) > :info:build make[2]: *** [bin/akonadi_agent_server] Error 1 > > but I do not understand it, not being familiar with boost etc. > > As you can see from another email, I am trying Sierra on a new machine, > and that has a problem, but I still have my old machine on 10.7 Lion. > > Cheers, Ian W. >
