Ar is part of GNU
Binutils. If it isn't installed, install it.
Generally, it's full path is /usr/bin/ar. You can check with
.
If it is present on your system, use
to see if /usr/bin is in your PATH variable (it should be). If it isn't, edit /etc/profile to include /usr/bin, run
Code:
source /etc/profile
and check if it is in your PATH now. If it is, retry the ./configure (in the session now using the new /etc/profile).
Post any output in this thread if you still have any problems.