The qdoc 'defines' config variable lists values
that contain '*' to represent wildcards, but clang
doesn't accept them. This change adds a new config
variable called 'clangdefines' which explicitly
lists all the defines that match the wildcards.
It also lists several Qt defines for C++11 stuff,
because when clangqdoc comes into use, all the
supported compilers for Qt will support C++11
constructs.
There might be a few defines listed in clangdefines
that are unnecessary and maybe a few that we really
should not include, but we can adjust the list as
needed.
The clangqdoc code that reads this new config variable
will be added in a separate change. This change will
not affect the non-clang qdoc, because qdoc will just
ignore the clangdefines variable.
This change also adds Q_CLANG_QDOC to 'defines' and
to 'clangdefine'. Q_CLANG_QDOC is meant to be used
in the sources the way Q_QDOC is used. It indicates
that a particular use of Q_QDOC has been reviewed and
is still required for clangqdoc.
Change-Id: I3b00b18ec726196eda5cfa8411cd3e87433fec59
Reviewed-by: Martin Smith <martin.smith@qt.io>