This bug was fixed in the package qtbase-opensource-src - 5.11.1+dfsg-7ubuntu2
--------------- qtbase-opensource-src (5.11.1+dfsg-7ubuntu2) cosmic; urgency=medium
* Add a patch to pass default include directories to qdoc (LP: #1799111).
-- Dmitry Shachnev <email address hidden> Fri, 02 Nov 2018 14:41:35 +0300
This bug was fixed in the package qtbase- opensource- src - 5.11.1+ dfsg-7ubuntu2
--------------- opensource- src (5.11.1+ dfsg-7ubuntu2) cosmic; urgency=medium
qtbase-
* Add a patch to pass default include directories to qdoc (LP: #1799111).
-- Dmitry Shachnev <email address hidden> Fri, 02 Nov 2018 14:41:35 +0300