I get the following error while trying to compile ROOT:

[I] No git repository info found. Trying to interpret VERSION_INFO
[I] src/XrdVersion.hh successfully generated
.../root-6.16.00.build/XROOTD-prefix/src/XROOTD/src/XrdXrootd/XrdXrootdProtocol.cc: In member function ‘XrdXrootdProtocol XrdXrootdProtocol::operator=(const XrdXrootdProtocol&)’:
.../root-6.16.00.build/XROOTD-prefix/src/XROOTD/src/XrdXrootd/XrdXrootdProtocol.cc:234:12: error: implicitly-declared ‘XrdXrootdProtocol::XrdXrootdProtocol(XrdXrootdProtocol&)’ is deprecated [-Werror=deprecated-copy]
234 | return *this;
| ^~~~
.../root-6.16.00.build/XROOTD-prefix/src/XROOTD/src/XrdXrootd/XrdXrootdProtocol.cc:215:19: note: because ‘XrdXrootdProtocol’ has user-provided ‘XrdXrootdProtocol XrdXrootdProtocol::operator=(const XrdXrootdProtocol&)’
215 | XrdXrootdProtocol XrdXrootdProtocol::operator =(const XrdXrootdProtocol &rhs)
| ^~~~~~~~~~~~~~~~~
cc1plus: all warnings being treated as errors
gmake[5]: *** [src/CMakeFiles/XrdServer.dir/XrdXrootd/XrdXrootdProtocol.cc.o] Error 1
gmake[4]: *** [src/CMakeFiles/XrdServer.dir/all] Error 2
gmake[3]: *** [all] Error 2

Could you please let me know if there is anything that can be done? Using gcc-9.1.0 to compile it. Has anybody tried to compile Xrootd with this version of gcc?

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