Hello, lcov 1.9 isn't working with the current GCC, upgrade to 1.10 fixes it. Fedora uses a patch against 1.9 [1], not needed anymore with the current version. Please push this package. [1] http://pkgs.fedoraproject.org/cgit/lcov.git/diff/?id=25a274d9dbd6813b160e8c8c6ab12791dff8733e