getconf LONG_BIT in NetBSD

[Ramiro Aceves <ea1abz%gmail.com@localhost>]

Hello,

I have been playing with an autoconf ./configure script that I want get 
running in several OSes. The script uses "getconf LONG_BIT" to get the 
bits of the system.


I see that "getconfg LONG_BIT" works in other systems such as  Linux and 
FreeBSD but in NetBSD I have tried it and it does not work:

netbsd-nuc$ getconf LONG_BIT
getconf: LONG_BIT: unknown variable


I read this on limits (3) man page about LONG_BIT:


   XSI Limits
     Also the X/Open System Interface Extension (XSI) specifies few 
limits. In NetBSD these are limited to LONG_BIT (the number of bits in 
long), WORD_BIT (the number of bits in a “word”), and few limits related 
to float and double.

How can I get the value of the LONG_BIT variable?

Thanks you very much.
Regards.