adding fortran support to win version

[ldallolio]

Checklist

• Used a personal fork of the feedstock to propose changes
• Bumped the build number (if the version is unchanged)
• Reset the build number to 0 (if the version changed)
• Re-rendered with the latest conda-smithy (Use the phrase @conda-forge-admin, please rerender in a comment in this PR for automated rerendering)
• Ensured the license file is being packaged.

[conda-forge-webservices]

Hi! This is the friendly automated conda-forge-linting service.

I just wanted to let you know that I linted all conda-recipes in your PR (recipe) and found it was in an excellent condition.

[varlackc]

There seem to be some architectures that are still failing.

[ldallolio]

There seem to be some architectures that are still failing.

Hi, indeed (I marked this PR as a draft), I have multiple issues maybe someone can point me in the right direction :

• I do not know why (maybe because of rerendering?) other architecture than windows should fail : I only touched meta.yaml with [win] specifiers and bld.bat, I will check this later before removing the draft mark
• I tried adding mingw-gfortran as a compiler but cmake will also use it as a linker and the ninja generator will pass link flags for visual studio. I looked around but could not find any way to force another linker (link.exe) or flag options, so I suppose this is a no go
• I tried replacing all the compilers in Windows with mingw but the build fails (I will loook into that)
• I did not try yet using flang for Windows, I will

Any help or hint is appreciated!
All the best,

[nicogodet]

I tried replacing all the compilers in Windows with mingw but the build fails (I will loook into that)

I have a successful build with MinGW compilers
See recipe here : https://github.com/nicogodet/hdf5-otm-feedstock/tree/main/recipe

m2w64-msmpi is on my personnal Anaconda channel

[hmaarrfk]

I'm not sure it will be abi compatible with the non mingw version.

[nicogodet]

One idea would be to add an additionnal package like it's done by netcdf ?
https://github.com/conda-forge/netcdf-fortran-feedstock/tree/main

[hmaarrfk]

lets not add a new package. Nicolas, it seems you may have a working package for HDF5 + fortran using m2w64, if you make a PR that can be the start of the review process, otherwise, it is very difficut to review without one.

[nicogodet]

Will do it soon ;)