Hi

thanks you for the tips. I had to tell the fetcher to unpack into ${S} too:
SRC_URI = "file://Makefile;subdir=${S} \
           file://mymodule_core.c;subdir=${S} \
           file://mymodule.h;subdir=${S} \
           file://mymodule_public.h;subdir=${S} \
           file://mymodule_remote_public.h;subdir=${S} \
          "

S = "${WORKDIR}/checkout"
and it worked like a charm :)