Broken compilation with LLVM 8.0.1

[pkubaj]

Describe the bug
I can't compile with LLVM 8.0.1:
/wrkdirs/usr/ports/games/openxray/work/xray-16-510/Externals/ode/ode/src/quickstep.cpp:428:9: error: no member named 'random_shuffle' in namespace 'std'
std::random_shuffle (order,order+m);
~~~~~^
1 error generated.

Note that std::random_shuffle was removed in C++17, but OpenXRay uses C++17. Either downgrade to C++14 or stop using std::random_shuffle.

To Reproduce
Try to compile with LLVM 8.0.1.

Expected behavior
The software should compile successfully.

Desktop (please complete the following information):

• OS: FreeBSD 12.1-RC2
• OpenXRay build version 510