See https://github.com/paulusmack/ppp/commit/3c7b86229f7bd2600d74db14b1fe5b3896be3875 and https://bugs.archlinux.org/task/60470 A new release has been requested - https://github.com/paulusmack/ppp/issues/111 - but my guess is that we need to apply the commit as a patch. PS! I discovered this problem by accident - a new use flag caused a rebuild.
*** This bug has been marked as a duplicate of bug 664750 ***
I'm very happy that is is fixed, but why isn't ppp-2.4.7-r7 is marked stable? It doesn't make much sense that ppp-2.4.7-r6 is stable - and doesn't build ...