Either --dump output is wrong, or --disable-network-manager has broken logic in configure.ac (.in?) that makes it same as --enable-network-manager $ NOCONFIGURE=1 ./autogen.sh $ ./configure --disable-network-manager --enable-maintainer-mode $ make $ make install $ xfce4-power-manager --dump [ ..snip .. ] With network manager support [ ..snip .. ]
checking whether to build with network manager support.... no Network manager: no but config.h #define WITH_NETWORK_MANAGER 1 yup, that's broken. Pushed a fix in: http://git.xfce.org/xfce/xfce4-power-manager/commit/?id=55d4c6f3fa2b3fde61a474a748efde4c8c174a6f Good catch, thanks!