match_filename fails when the filenames in @list contain /../ components. This causes warnings like "geninfo: WARNING: cannot find an entry for ... in .gcno file, skipping file!" and "geninfo: WARNING: no data found for ...".
Patched match_filename to use solve_relative_path to remove the /../ and /./ components of the path before comparing. It still returns the original "entry", otherwise you still get the "no data found for" failures.
May not be the most elegant fix but it works for me.
match_filename patch
download lcov-1.12.tar.gz
(wget <link>)
tar xvf lcov-1.12.tar.gz
cd lcov-1.12
make install