fix this terrible configure check to work with autoconf 2.5 as well (aka only use documented autoconf hackery ;-) ### backport ?
fix this terrible configure check to work with autoconf 2.5 as well
(aka only use documented autoconf hackery ;-)
### backport ?

svn path=/trunk/kdenetwork/kppp/; revision=115788

KDE/kppp,KDE/kppp,KDE/kppp,KDE/kppp