Wireshark · Wireshark-dev: Re: [Wireshark-dev] Wireshark 3.0.0rc1 on macOS Mojave 10.14.3

[Gerald Combs <gerald@xxxxxxxxxxxxx>]

On 2/25/19 8:04 AM, Jaap Keuter wrote:
> 
> 
>> On 24 Feb 2019, at 21:30, Guy Harris <guy@xxxxxxxxxxxx> wrote:
>>
>> On Feb 24, 2019, at 12:05 PM, Jaap Keuter <jaap.keuter@xxxxxxxxx> wrote:
>>
>>> Just tried it, no luck.
>>
>> And no stack trace, either.
>>
>> What capture file are you running this on, and what operation are you performing on it?
>>
> 
> This is from just trying to start Wireshark after running the installer, not a capture file involved.

It looks like we need to build GMP for older CPUs. 

According to your last crash report, you're running a Core i7-3720QM and crashed in mpn_submul_1. GMP's "Build Options" documentation at https://gmplib.org/manual/Build-Options.html says that it can be optimized for a number of CPUs, and that its configure script defaults to "this CPU here, right here in my office". For the macOS builder that's a Core i7-8700B

The "Notes for Package Builds" section of the documentation recommends "--enable-fat" when shipping binary packages, which builds a range of optimized code and chooses the fastest at run time: https://gmplib.org/manual/Notes-for-Package-Builds.html

Homebrew defines an "oldest supported CPU", which appears to be "core2" and builds for that:

https://github.com/Homebrew/homebrew-core/blob/master/Formula/gmp.rb
https://github.com/Homebrew/brew/blob/master/Library/Homebrew/hardware.rb

...so, should be build GMP for everything or a single, older CPU?