Re: bug#50098: Configuring --with-libsigsegv results in link error

[Evan Miller]

> On Aug 17, 2021, at 22:04, Evan Miller <emmiller@gmail.com> wrote:
> 
> 
>> On Aug 17, 2021, at 18:53, Paul Eggert <eggert@cs.ucla.edu> wrote:
>> 
>> On 8/17/21 1:02 PM, Evan Miller wrote:
>> 
>>> Thanks for the patch. At present, the non-libsigsegv implementation does 
>>> not compile on this machine for reasons described in
>>> https://trac.macports.org/ticket/63381
>> 
>> Oh, I see you're building for an old system (Mac OSX 10.4.11, circa 2007) 
>> that Apple itself is no longer supporting. Although we don't normally worry 
>> about such platforms, perhaps you can come up with a patch that clearly 
>> won't break mainline platforms.
> 
> A simple regex substitution (removing double underscores from the struct 
> member names on the affected platform) seems to do the trick in the 
> downstream package. If I have the time and cleverness I'll see about a proper 
> patch.

Attached is a proposed patch to fix the compilation issue, designed by 
comparing the 10.4 and 10.5 SDKs. It relies on an implementation detail, but I 
think it's safe to say that the PowerPC headers are frozen at this point.

I have built it on 10.4. I'll try to find some volunteers on the MacPorts side 
to test on 10.5.

gnulib-tiger-mcontext.diff
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