LDC for PowerPC64 on FreeBSD

Curtis clhamilto at gmail.com
Mon Sep 25 20:27:53 UTC 2017

On Monday, 25 September 2017 at 19:01:24 UTC, kinke wrote:
> On Monday, 25 September 2017 at 14:37:56 UTC, Curtis wrote:
>> Any ideas?
> Yep, I suspect it has something to do with the 2x64-bit 
> doubledouble floating point format, as your segfault seems to 
> happen in `llrintl()`. We compile the C++ parts of LDC with 
> `-mlong-double-64` (double-precision long double) and use 
> 64-bit D reals (at least with LDC master, not sure about 
> ltsmaster/0.17.x). If your `libm.so` expects doubledoubles, the 
> D real needs to be adapted. IIRC, it might even work out of the 
> box for LDC master. See 
> https://github.com/ldc-developers/ldc/blob/master/CMakeLists.txt#L213 for how to enable 'normal' C long doubles (=> D reals).

Thanks! I'd noticed that code in CMakeLists.txt, but thought it 
was only appropriate for powerpc vice powerpc64.  I'll give it a 
try and report back.

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