Dear Aurelien,
The package compiles just fine with the later gcc version. But - and
this is a big but - about 10 to 25 percent of results produced with the
newer versions give slightly different results, i.e. different enough
that the difference between the g++ versions is bigger than the
difference between platforms (ARM, 32bit annd 64bit Intel and AMD
machines, ARM and Intel with an OpenCL implementation).
I would not have found that compiler dependency if g++-5 had already
been completely removed from the distribution. So, I am really thankful
for that. It was not expected. I can see that you want to remove that
older gcc, but I think it would be a mistake. I do not say that the
newer version has an issue, that may or may not be the case, just be
aware that the binaries at hand have been tested against against
injected known truths and error tolerance thresholds been derived from
there. This needs more investigation. Please do not remove this package
or g++-5 yet.
Cheers,
Steffen
