[BUG] Unable to build.

[shanemarsh28]

Attempting to compile as per instructions on Readme. Unable to build.

./db/version_edit.h:86:8: error: implicitly-declared ‘constexpr rocksdb::FileDescriptor::FileDescriptor(const rocksdb::FileDescriptor&)’ is deprecated [-Werror=deprecated-copy]

• OS: Ubuntu 20.04
• GCC/G++ (Ubuntu 9.3.0-17ubuntu1~20.04) 9.3.0
• GNU Make 4.2.1

To Reproduce
Steps to reproduce the behavior:

1. Build as per instructions on README

[shanemarsh28]

Just an as update, it wouldn't compile under GCC 10.2.0 either but I did have success using GCC 8.4.0.

Perhaps add that as a requirement within your Readme.md?

[git-hulk]

many thanks to @shanemarsh28 to find out about this issue, it seems rocksdb doesn't support higher version GCC(>=9) and fixed in newer, we would also fix that. any progress would update in this channel.

relate issue: facebook/rocksdb#5303

[git-hulk]

We have confirmed that the newer version(after 6.15.1) of rocksdb has compatible with gcc9 in ubuntu20.04. @karelrooted would help to investigate whether the newer version has other issues within kvrocks, and we would upgrade the rocksdb dependence to the latest if all works well.