Re: Can't build Emacs on master branch

[Paul Eggert <eggert@cs.ucla.edu>]

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Federico wrote:
> calc/calc-aent.el:28:1:Error: Arithmetic range error: "expt", 10, 9

Thanks for reporting it, as it didn't happen on the platform I was testing with. 
I installed the attached, which should fix it.

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From ecd7a9407711ebe24d7e07d4402a2d66754ee693 Mon Sep 17 00:00:00 2001
From: Paul Eggert <eggert@cs.ucla.edu>
Date: Sun, 19 Aug 2018 10:05:41 -0700
Subject: [PATCH] Fix expt signedness bug --without-wide-int

Problem reported by Federico in:
https://lists.gnu.org/r/emacs-devel/2018-08/msg00619.html
* src/floatfns.c (Fexpt): Use TYPE_RANGED_FIXNUMP, not
RANGED_FIXNUMP, to fix bug with unsigned comparison on
platforms built --without-wide-int.
---
 src/floatfns.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/floatfns.c b/src/floatfns.c
index 54d068c29e..7c52a0a9a2 100644
--- a/src/floatfns.c
+++ b/src/floatfns.c
@@ -212,7 +212,7 @@ DEFUN ("expt", Fexpt, Sexpt, 2, 2, 0,
   if (INTEGERP (arg1) && NATNUMP (arg2))
     {
       unsigned long exp;
-      if (RANGED_FIXNUMP (0, arg2, ULONG_MAX))
+      if (TYPE_RANGED_FIXNUMP (unsigned long, arg2))
 	exp = XFIXNUM (arg2);
       else if (MOST_POSITIVE_FIXNUM < ULONG_MAX && BIGNUMP (arg2)
 	       && mpz_fits_ulong_p (XBIGNUM (arg2)->value))
-- 
2.17.1