Cannot compile with g++ 6.3.0 or clang 3.8.1 about autodiff HOT 5 CLOSED

Answer to myself:

"if constexpr" statement requires clang >= 3.9 || gcc >= 7

from autodiff.

I have tried clang 8 and compilation still fails.
output.txt

Which is minimal compiler to use autodiff?

from autodiff.

Have you tried using gcc-7.3.0+? clang-8 should work - I'm checking here in my machine.

from autodiff.

I compiled here using clang++-8 and everything worked well. Find below the steps I took:

cd autodiff
mkdir build
cd build
export CXX=/usr/bin/clang++-8
export CC=/usr/bin/clang-8
cmake ..
make -j 3

I have attached a complete log file for the build process. Let me know if the issue persists (by reopening this issue).

autodiff-build-log-using-clang-8.txt

from autodiff.

I managed to compile with clang 8.
I had to indicate to use llvm libc++ and libc++abi.

from autodiff.