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On 2025-09-03 12:11, Juan Conde Barrios via Cygwin wrote:
> Hello everyone,
> 
> I'm trying to run a numerical modeling software that requires openmpi extension files to run, but I'm getting this error:  “*/PADCIRC.exe: error while loading shared libraries: ?: cannot open shared object file: No such file or directory”
> 
> I tried looking at the error through another road by running: “cygcheck */PADCIRC.exe", and I got these two messages:
> 
> “cygcheck: track_down: could not find cygopen-pal-13.dll
> 
> cygcheck: track_down: could not find cygopen-rte-12.dll”
> 
> I checked the cygwin website and the only .dll availables to install are cygopen-rte-40.dll and cygopen-rte-40.dll. Does someone know where can I find the remaining extension files?

It looks like those were probably part of the now unsupported 1.10 releases: if 
you rebuild against current libopenmpi-devel and openmpi 4.1 releases, your 
software should work with the current cyg...40.dll binaries.

You can research installing ancient openmpi releases still available from the 
Cygwin Time Machine:

	https://cygwin.com/install.html#unsupported

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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