XEmacs or Gentoo error?

[Stephen J. Turnbull]

Mats Lidell writes:

 > emacs.c: In function 'int debug_can_access_memory(void*, Bytecount)':
 > emacs.c:3371: warning: statement has no effect
 > 
 > ... and whether that is a problem or not is something completely
 > different.

This is not a problem.  This is a debug statement which simply
accesses memory, and thus has no effect on anything that matters,
unless the memory access fails, in which case the signal is caught and
a useful error message emitted.