libqhy: missing "config.h" header file

[maclomhair]

Describe the bug
In the bundled libqhy QHYCCD SDK, one header file seems to be missing: config.h, which is referenced by other header files. Maybe it also works without it, since it consists only of a couple of lines, but still gcc complains.

Is there a specific reason not to include this file?

To Reproduce
Look at libqhy/qhyccd.h and see that "config.h" is included, but not provided. Compiling the test application fails using the Makefile and the so installed library because of the missing config.h

Expected behavior
"config.h" is bundled as well

Desktop (please complete the following information):

• OS: Arch Linux
• Version: 2022-04-19

[knro]

INDI QHY driver can be linked just fine against libqhy, so how come it does not fail if that file is missing?

[maclomhair]

The INDI QHY driver seems to have a config.h file on its own which is then used - I haven't tested that, though.