Warning: undefining the allocator of T_DATA

[inkstak]

Hi, we use the gdal3 branch and got few warnings:

[..]/gdal-ruby-1820e1643725/lib/gdal-ruby/gdal.bundle: warning: undefining the allocator of T_DATA class swig_runtime_data
[..]/gdal-ruby-1820e1643725/lib/gdal-ruby/gdal.bundle: warning: undefining the allocator of T_DATA class SWIG::TYPE_p_f_double_p_q_const__char_p_void__int

#Gemfile
gem "gdal", github: "zhm/gdal-ruby", branch: "main", ref: "1070580"

#brew info gdal
==> gdal: stable 3.6.2 (bottled), HEAD