Maybe this is related to the recent work on citations?
make check ... CXXLD check_layout check_layout-TextClass.o: In function `lyx::getDocumentClass(lyx::LayoutFile const&, lyx::LayoutModuleList const&, lyx::LayoutModuleList const&, bool)': lyx/devel/src/TextClass.cpp:1706: undefined reference to `lyx::theCiteEnginesList' lyx/devel/src/TextClass.cpp:1706: undefined reference to `lyx::CiteEnginesList::operator[](std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' lyx/devel/src/TextClass.cpp:1717: undefined reference to `lyx::LyXCiteEngine::isAvailable() const' lyx/devel/src/TextClass.cpp:1718: undefined reference to `lyx::LyXCiteEngine::prerequisites() const' collect2: ld returned 1 exit status make[4]: *** [check_layout] Error 1
