From Suse.

"This patch won't be submitted to the svn version as it is only an ugly workaround for issues caused by libnl's handling of kernel types (fixed in libnl trunk)."

--- knetworkmanager/src/Makefile.am
+++ knetworkmanager/src/Makefile.am
@@ -31,7 +31,7 @@
 lib_LTLIBRARIES =
 kdeinit_LTLIBRARIES = knetworkmanager.la
 
-KDE_CXXFLAGS = -UQT_NO_ASCII_CAST
+KDE_CXXFLAGS = -UQT_NO_ASCII_CAST -std=gnu++98
 
 # the application source, library search path, and link libraries
 knetworkmanager_la_SOURCES = main.cpp knetworkmanager.cpp knetworkmanager-dbus.cpp \