"C++11 requires a space between literal and identifier" build failure(s) — clang 5.0

PackageVersionSupposed error messageFull log Bug report
httraqt 1.4.9-1htsglobal.h:211:80: error: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal] Log
octave-sparsersb 1.0.5-1sparsersb.cc:100:49: error: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal] Log
phantomjs 2.1.1+dfsg-2webpage.cpp:80:89: error: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal] Log
qt-gstreamer 1.2.0-4basedelegate.cpp:158:53: error: invalid suffix on literal; C++11 requires a space between literal and identifier [-Wreserved-user-defined-literal] Log

4 errors