fix FTBFS due to sys_errlist removal in glibc

delete -fstack-protector

2.4.8
build with -fstack-protector from now on (mike@)
Fixes:
2020-8597 rhostname buffer overflow in the eap_request and eap_response functions

update to ppp-2.4.7-eaptls-mppe-1.101.patch
backport patches from upstream master
build with libsystemd for option up_sdnotify

fixed ftbfs against current libcrypt with fedora patch (thx ldv@)
fixed libatm knob

Fixed build with modern kernel headers.

Fix openl2tp socket path

2.4.7
add udev rules for set GROUP=uucp (ALT #29457)

drop /lib/udev/devices/ppp

don't need create /dev/ppp with kmod >= 14
ppp-2.4.5-eaptls-mppe-0.993.patch

Enable IPv6 support (closes: #27707).

mv /etc/tmpfiles.d/ppp.conf -> /lib/tmpfiles.d/ppp.conf.
update tmpfiles for create a character device /dev/ppp.

update upstream snapshot
merge all git branches to patches/alt-all_patches
add config for systemd-tmpfiles
fix link with libcrypto radius plugin
Debian patches:
pppoe pppd exits with EXIT_OK after receiving a timeout waiting

add device to /lib/udev/devices/ppp for udev

upstream snapshot
update eaptls patch to v0.99
fix build pppol2tp

oops, synchrobumped release for pptpd
devel subpackage made noarch