Re: -Wshift-negative-value

[Bruno H. <br...@cl...>]

Hi Sam,

> here is what I see at the tip (./configure --with-debug --cbc on macosx)
> 
> --8<---------------cut here---------------start------------->8---
> Warning: overwriting existing memory mappings in the address range 0x3fffffedd000...0x3fffffeddfff. clisp will likely crash soon!!
> Warning: overwriting existing memory mappings in the address range 0x200262000...0x200262fff. clisp will likely crash soon!!
> Warning: overwriting existing memory mappings in the address range 0x3fffffedc000...0x3fffffedcfff. clisp will likely crash soon!!

Oops. mincore() on Mac OS X is apparently not usable for detecting whether a
page is mapped: it returns 0 in either case. Seen on Mac OS X 10.11 through
the attached program.

Fixed now.

Bruno