[OS X] avoiding kdelibs4 headers? ("unknown type name 'KARCHIVE_DEPRECATED'" building kdoctools)

[René J. V. Bertin]

Alex Merry wrote:

> Well, if we'd done it for kdelibs4 as well, you wouldn't have this issue
> - if you had to add -I/opt/local/include/kdelibs in order to find any
> kdelibs headers, none would be found by mistake.

Before I find myself patching who knows how many KF5 files: is there a provision 
in KDELibs4 to install its headers in a place where they shouldn't clash with 
KF5's headers?

Thanks
René