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From: Glenn Morris <rgm@gnu.org>
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Subject: Re: master bec5cfe: Improve integer range checking
Date: Sun, 05 Apr 2020 12:35:22 -0400
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> branch: master
> commit bec5cfee7660f6e283efbd30a693a6f8e9ea46b8

Hi,
This fails to build for me with --enable-check-lisp-object-type and gcc 8.3.1:

bignum.c: In function 'check_int_nonnegative':
bignum.c:468:23: error: used struct type value where scalar is required
   return Fnatnump (x) ? check_integer_range (x, 0, INT_MAX) : 0;
                       ^
bignum.c:469:1: warning: control reaches end of non-void function