[yocto] problem with nativesdk host tools

[Stefan Müller-Klieser]

Dear community,

my problem: I want to provide a populate_sdk based toolchain for e.g. 
compiling a kernel. When using this sdk on a machine missing the 
ncurses-dev package, you can run "make menuconfig" through bitbake but 
not with the sdk. The sdk seems to ignore host dependencies and there 
are some bug tracker entries related to this. It does not seem to help 
to create:
recipes-core/packagegroups/nativesdk-packagegroup-sdk-host.bbappend
RDEPENDS_${PN} += "\
     nativesdk-ncurses \
     nativesdk-ncurses-dev \
"
as the corresponding changes to the include and library search path are 
not handled correctly. In meta-qt5 there is some larger effort 
undertaken resolving similar issues.
Can someone please clarify what the status concerning the host 
dependencies and the nativesdk is? Am I missing something? Is this a use 
case for the extensible sdk?

Thanks in advance!
Yours, Stefan