rpicamsrc: lookup for bcm_host and friends using dependency mechanics
Hello,
I'm cross-compiling GStreamer 1.18 for RPi board and found there are several components that depend on bcm_host library and friends. However various components detect libraries in inconsistent ways.
Whereas gst-omx and gst-gl relies on the dependency mechanics, the rpicamsrc introduces two additional options.
Please use the same dependency mechanics for rpicamsrc to detect bcm_host libraries.
In this case it's only enough to add $sys_root/opt/vc/lib/pkgconfig additional path to pkg_config_libdir in order to make all bcm_hiost dependent parts to build.