compilation issues with Mingw64 /gcc 10.2

[sancelot]

It looks like there are some dllimport and functions may be declared as inline that conflicts

leading to many compiler (gcc10.2 ) messages as this one:

mingw-w64-libfcl/fcl-0.6.1/include/fcl/math/motion/taylor_model/interval-inl.h:417:13: warning: 'fcl::Interval fcl::bound(const fcl::Interval &, S) redeclared without dllimport attribute: previous dllimport ignored [-Wattributes]

[sherm1]

We would welcome a PR to fix this!

[sancelot]

I agree, I understand there are some dll imports definitions in headers, that should be defineedd in inl.h files or inlined.... I am not really sure how to solve it at the moment

[sancelot]

Sorry, but your help is needed,you must keep in mind that this code is not very easy to understand

duplicate of #474

[jamiesnape]

It should not really be a duplicate of #474. CMake should be handling the right syntax cross-platform. Assuming it is, if this compiler is complaining in this respect, it means a mistake was made by developers for all platforms, but it is less of an issue with those platforms. That being said the CMake is very messy at the moment, so potentially there is an issue, but I think this one may be down to the C++ code.