The openfortivp documentation says that, the kernel modules "CONFIG_PPP" and "PPP_ASYNC" have to be submitted to work and the ebuild does not check this. I think this code is a possible solution, but I don't know if it meets the ebuild standard for i in PPP PPP_ASYNC; do if ! linux_chkconfig_present ${i}; then msg="${msg} ${i}" fi done
It is working and warning but It is not estricted cofig. sorry inconvenience