tinc systemd service files not created

[esiefker]

Compiling tinc-1.1pre18 on Debian 12, no systemd files are installed

No errors when making

Making all in systemd
make[2]: Entering directory '/usr/src/tinc-1.1pre18/systemd'
make[2]: Nothing to be done for 'all'.
make[2]: Leaving directory '/usr/src/tinc-1.1pre18/systemd'

No errors when making install

Making install in systemd
make[1]: Entering directory '/usr/src/tinc-1.1pre18/systemd'
make[2]: Entering directory '/usr/src/tinc-1.1pre18/systemd'
make[2]: Nothing to be done for 'install-exec-am'.
make[2]: Leaving directory '/usr/src/tinc-1.1pre18/systemd'
make[1]: Leaving directory '/usr/src/tinc-1.1pre18/systemd'

No tinc service files to be found anywhere.

$ sudo find / -name "*tinc*service*"
/usr/src/tinc-1.1pre18/systemd/[email protected]
/usr/src/tinc-1.1pre18/systemd/tinc.service.in