unable to build on linux about rhino3dm

[mcneel-build]

Linked with RH3DM-77

[pearswj]

Try updating GCC to version 7 or 8. Our Python 2 CI builds currently run on Ubuntu with GCC 7.4 and our Python 3 builds run on Debian with GCC 8.3.

[bareya]

Change of compiler has little to do with error that is happening here:

    /tmp/pip-req-build-BYVT7S/src/bindings/../lib/opennurbs/opennurbs_lock.h:118:44: error: use of deleted function ‘std::atomic<int>::atomic(const std::atomic<int>&)’
       std::atomic<int> m_lock_value = ON_Lock::UnlockedValue;

Solution is to change assignment to direct initialization, then all those preprocessor ifs with clang can go out. I have been playing with it here:
mcneel/opennurbs@6e40704

[pearswj]

Thanks for the suggestion @bareya – I'll pass it along to my colleagues who look after opennurbs.

In the meantime, I managed to install the rhino3dm package via pip (Python 3) on Centos 7 using gcc 7.3.1.

yum install centos-release-scl
yum install devtoolset-7-gcc*
scl enable devtoolset-7 bash
pip3 install -vv rhino3dm
exit

[mcneel-build]

Closed via RH3DM-77