[strongSwan] makefile

[Tobias Brunner]

Hello,

Your run of ./configure did not finish successfully which means that it
did not create any Makefiles:

> checking for nm... no
> configure: error: Package requirements (NetworkManager gthread-2.0
> libnm-util libnm-glib libnm-glib-vpn) were not met:
> 
> No package 'libnm-glib-vpn' found

As mentioned here you need the libnm-glib-vpn package, and since you
build from sources you'll also need the header files (provided by the
libnm-glib-vpn-dev package).  If you don't actually need integration
into NetworkManager you can also remove the --enable-nm option when
executing ./configure.

Regards,
Tobias