bug#9713: emacs 24.0.90 alloc.c assertion failure

[Eli Zaretskii]

> Date: Mon, 10 Oct 2011 00:21:23 GMT
> From: karl@freefriends.org (Karl Berry)
> 
> (If there's a different place to report pretest bugs, please inform.
> Saw nothing in the README.)

This is the right place.  "M-x report-emacs-bug RET" does TRT
automagically.

> Trying to compile the emacs 24.0.90 pretest on (the latest) CentOS 5.7,
> the assertion at line 740 of alloc.c fails:
> verify (INT_MAX <= PTRDIFF_MAX);
> 
> With the system compiler (gcc version 4.1.2 20080704 (Red Hat 4.1.2-51)),
> the error is;
> alloc.c:740: error: negative width in bit-field '_gl_verify_error_if_negative'
> 
> With gcc 4.6.1 compiled from the original sources, the error is:
> alloc.c:740:1: error: static assertion failed: "verify (INT_MAX <= 
> PTRDIFF_MAX)"

What are INT_MAX and PTRDIFF_MAX on that machine?  IOW, first let's
see if this is a false alarm or not.