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From: | Paul Eggert |
Subject: | Re: intprops.h xalloc-oversized.h: fix typos and port to gcc-7 |
Date: | Mon, 29 Aug 2016 12:05:07 -0700 |
User-agent: | Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 |
Jim Meyering wrote:
Good catch. Thanks.
In trying it out on GNU Emacs with GCC 6.2 I ran into another problem: it complains at compile-time if __builtin_add_overflow's 3rd arg is null. In some GCC versions this is supposed to discard the value, but I guess that capability is superseded by __builtin_add_overflow_p. So I installed the attached additional patch, which avoids the need for a null argument so we don't have to worry about GCC version details there.
0001-intprops.h-port-recent-changes-to-GCC-6.2.0.patch
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