CMake: Fix exclusion of QtFoo in QtBarDepends for 3rd party libs

When configuring a static Qt with the -qt-zlib option and the build
system creates a 3rd party header module QtZlib, syncqt
does not generate a QtZlib header file that would include all its
public headers.

Then when the QtSvgDepends header is generated, it would add an
 #include <QtZlib> which would break compilation of the QtSvg PCH
file (which compiles QtSvgDepends).

We have logic to exclude addition of headers from regular 3rd party
static libraries, but not header only 3rd party libraries.

Adjust the code to handle header-only 3rd party libraries, as well as
make sure it works across repos by exporting the relevant properties.

As a drive-by, also rename and export some other informational
properties.

Amends af00402d6446c0f8f085a2a482fc83c4318aa457
Amends 6fdeaea24f9035ad53ba2548a9467b3264cf01ad
Amends be2745e4788cecb0d3122081e3328e4b66923609

Pick-to: 6.2 6.3
Change-Id: I087f50b193dd845e4a5ec906e8851d63122faf80
Reviewed-by: Alexey Edelev <alexey.edelev@qt.io>

0 files changed, 0 insertions, 0 deletions