After upgrade to Fedora 28 could not start recoll, got an error:
/usr/include/c++/8/bits/stl_vector.h:932: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator [with _Tp = regmatch_t; _Alloc = std::allocator; std::vector<_Tp, _Alloc>::reference = regmatch_t&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion 'builtin_expect(n < this->size(), true)' failed.
recoll-1.23.7-2.fc28.x86_64, libstdc++-8.1.1-1.fc28.x86_64