Failure to catch C++ exception in Haskell on OS X

[Bas van Dijk]

Dear GHC Devs,

I'm debugging an issue in our haskell-opencv library where a C++ exception
that is thrown by the OpenCV C++ library isn't caught by the C++
try...catch block we have inlined in our Haskell code using inline-c-cpp.
This results in the process terminating by SIGABRT.

Note that this only happens on OS X. In Linux the exception is caught
correctly.

I wrote a minimal isolated test case (which doesn't use OpenCV) at:

  https://github.com/basvandijk/darwin-cxx-exception-bug

I wrote some instructions in the README on how to reproduce this and
included some debugging notes.

I'm not sure the bug is caused by a mis-configuration in my code or if it's
a bug in nixpkgs, Cabal or GHC. Any idea what could be causing this?

Bas
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