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bug#63556: 29.0.90; Use of _Generic breaks Emacs build on GCC <4.9


From: Paul Eggert
Subject: bug#63556: 29.0.90; Use of _Generic breaks Emacs build on GCC <4.9
Date: Wed, 17 May 2023 10:57:38 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0

On 2023-05-17 10:38, Spencer Baugh wrote:
I think it's because I'm on gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-44),
and _Generic was added in 4.9?

Thanks for reporting the problem. Since _Generic is used here merely as a micro-optimization on 32-bit platforms, it's not worth whatever porting hassle you've run into, so I installed the attached patch so that modiff no longer uses _Generic.

Attachment: 0001-Port-modiff-changes-to-GCC-4.8.5.patch
Description: Text Data


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