warning message during installation

[S. Huang]

I just notice that there are warning message during the installation,
they are caused by comparison and unused parameter. There are a lot of
them, like:
***************************************************************
t-sqrt.c:143: warning: comparison between signed and unsigned
t-sqrt_ui.c: In function `check_rand':
t-sqrt_ui.c:63: warning: comparison between signed and unsigned
t-sqrt_ui.c: At top level:
t-sqrt_ui.c:106: warning: unused parameter 'argc'
t-sqrt_ui.c:106: warning: unused parameter 'argv'
reuse.c: In function `main':
reuse.c:128: warning: comparison between signed and unsigned
reuse.c:151: warning: comparison between signed and unsigned
***************************************************************
    Strictly speaking they are not bugs, but they can make the user get
lost in scrolling screen and cannot get the information they want if
they look at the screen during the installation. For long term it is
also a potential hazard. So I write this email.
    Thank you very much for maintaining the software!

regards

Sui Huang

Email:   huangs3 at mcmaster.ca
Web:     http://optlab.mcmaster.ca/~huangs3
Address: ITB 116, Department of Computing and Software,
         McMaster University, Hamilton, Canada