QDoc can't find the module header

QDoc needs to find the module header to parse all the header files for it's internal clang AST. To find the module header it checks all the includepaths which were defined on the command-line and from the qdoconf file.

All includepaths defined on the command-line gets appended to start with -I to be in the format clang expects. But the same list is also used to find the module header, which in the end leads to the following code block:

QFile::exists("-l<includePath>/<moduleheader>")

A workaround is to add the path to the module header in qdocconf file, as here the -I doesn't get added automatically and we can add an additional space to fix it.