> On 20 Jul 2022, at 6:32 pm, Dave Allured - NOAA Affiliate via macports-dev 
> <macports-dev@lists.macports.org> wrote:
> 
> On Wed, Jul 20, 2022 at 2:30 AM Christopher Jones <jon...@hep.phy.cam.ac.uk 
> <mailto:jon...@hep.phy.cam.ac.uk>> wrote:
>> On 20 Jul 2022, at 1:13 am, Dave Allured - NOAA Affiliate via macports-dev 
>> <macports-dev@lists.macports.org <mailto:macports-dev@lists.macports.org>> 
>> wrote:
>> 
>> Hmmm.  If port curl is already installed and active, then why would 
>> subsequent port fetches prefer /usr/bin/curl?  Is this a search path issue?
> 
> No. port does not rely on finding ‘curl’, from PATH. It instead uses the 
> system lib curl which it is liked against. The only way to get port to use a 
> different curl is to rebuild base, configured to use that version.
> 
> Ah, that is what I missed.  How about adding a fallback option to use an 
> alternate command line curl through PATH, when available, after normal fetch 
> attempts have failed?  My hope is that this would ultimately reduce time 
> spent on debugging connection and SSL issues.

Please read the discussion at

https://trac.macports.org/ticket/51516 <https://trac.macports.org/ticket/51516>

and add any comments you might have. 

In short, adding a ‘fallback to curl’ is very non trivial to do, perhaps not 
even possible.

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