The passkey-agent.c example source code is now installed under /usr/share/doc/bluez-utils/examples/ together with a simple Makefile to compile it if needed. Remember that this is an example code on how to write a passkey agent. Every desktop environment should provide its own default passkey agent. For GNOME it is provided by the bluez-passkey-gnome package. The KDE people need to step up and write a clean passkey agent for their desktop. Everything else is an ugly hack.
The passkey-agent.c example source code is now installed under /usr/share/ doc/bluez- utils/examples/ together with a simple Makefile to compile it if needed. Remember that this is an example code on how to write a passkey agent. Every desktop environment should provide its own default passkey agent. For GNOME it is provided by the bluez-passkey-gnome package. The KDE people need to step up and write a clean passkey agent for their desktop. Everything else is an ugly hack.