[Nut-upsdev] Dumb question (because I used to know the answer)

[CSO]

Good morning,

I am trying to build nut 2.1, and having a problem with autoreconf. I know I 
had this problem a while back, and resolved it, but for the life of me I 
can't remember how, and I can't find the info that must have led me in the 
right direction. 

I reloaded the PC today, and now when I run autoreconf I get the following 
output:

upsbox:/pub/trunk2# autoreconf
configure.in:60: error: possibly undefined macro: AC_PROG_LIBTOOL
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
autoreconf: /usr/bin/autoconf failed with exit status: 1

The OS is Debian Sarge, current as of today. Somewhere in the back of my mind 
I thought automake was the problem, but I only have v1.9 on the system.

Would someone mind offering guidance as to where I could be going wrong?

Thanks,
Patrick