PROJ: New version 9.4.0

[eschnett]

No description provided.

[ararslan]

Looks like you might need to update the preferred_gcc_version?

[visr]

Hmm since this changes the DLL name from libproj_9_3.dll to libproj_9_4.dll it is breaking on Windows. It needed the version_offset major version to be bumped like in #7366. We should probably write this in a comment next to the version numbers.

Now that it is out, I guess General needs to be updated to block PROJ_jll 901.400? Or better to just yank it?

[eschnett]

Is it actually incompatible? Would changing the library name on Windows to libproj_9_3.dll be another option?

[visr]

I think it is only the library name on Windows that is the issue I think. The PROJ_SOVERSION is the same so the ABI should otherwise be the same.

[eschnett]

That's also how the release notes read. Should we then rename the Windows libraries (and add respective comments) instead of blocking or yanking the package?

[visr]

I'd be fine with that if others agree. It seems like the smoothest upgrade path. I tried locally renaming the DLL in the artifact, and dev PROJ_jll with the same renames. That didn't work yet however, it is not clear why:

julia> using GDAL_jll
ERROR: InitError: could not load library "C:\Users\visser_mn\.julia\artifacts\415bbbe8ca2ee27f90b17984069673e280f25d0d\bin\libgdal-35.dll"
The specified module could not be found.

Note that GDAL_jll has a PROJ_jll dependency, but also via libgeotiff_jll. It is libgeotiff_jll that gives the errors: yeesian/ArchGDAL.jl#427

Of course it could be confusing that PROJ 9.4 has a libproj_9_3.dll. Going forward I'd rather not have the minor version in the name. As far as I can see this is not configurable, but we could ask upstream or patch ourselves:

https://github.com/OSGeo/PROJ/blob/9.4.0/cmake/ProjVersion.cmake#L40-L46
https://github.com/OSGeo/PROJ/blob/9.4.0/cmake/ProjUtilities.cmake#L37-L63
OSGeo/PROJ#3066

[visr]

Actually the libgdal-35.dll seems to be a separate issue affecting the new GDAL_jll versions, because forcing PROJ_jll@901.300 does not resolve that. Users need to downgrade both; add PROJ_jll@901.300 GDAL_jll@301.800.500.

[visr]

I propose we yank these two broken/breaking releases; JuliaRegistries/General#107721

Regarding the libproj DLL name, I also created an upstream issue: OSGeo/PROJ#4151

[joa-quim]

Is it actually incompatible? Would changing the library name on Windows to libproj_9_3.dll be another option?

Unfortunately that does not work on Windows because the dll name in embedded in the dll itself.

[visr]

Thanks @joa-quim. Let's move discussion to #8780.