[Issue 16856] D does not work on FreeBSD current (what will eventually be 12) due to libunwind

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16856

--- Comment #2 from Jonathan M Davis <issues.dlang at jmdavisProg.com> ---
If I compile and run this program

void main()
{
    throw new Exception("blah");
}

I get a bus error, and if I run it in gdb, I get this stacktrace:

#0  0x0000000800cd91bf in _Unwind_RaiseException () from /lib/libgcc_s.so.1
#1  0x000000000042a994 in _d_throwdwarf ()
#2  0x000000000042a216 in _Dmain ()
#3  0x000000000042a827 in
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZ9__lambda1MFZv ()
#4  0x000000000042a76d in
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ7tryExecMFMDFZvZv ()
#5  0x000000000042a7e3 in _D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ6runAllMFZv ()
#6  0x000000000042a76d in
_D2rt6dmain211_d_run_mainUiPPaPUAAaZiZ7tryExecMFMDFZvZv ()
#7  0x000000000042a6e7 in _d_run_main ()
#8  0x000000000042a2aa in main ()

So, I guess that whatever is going wrong relates to _Unwind_RaisException,
which I suppose makes sense, since that would appear to relate to libunwind.

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