@knedlsepp, thanks for your PR! By analyzing the history of the files in this pull request, we identified @vbgl, @Hodapp87 and @MarcWeber to be potential reviewers.

@FRidh I split hdf4 up into bin/dev/out. I had to manually specify postInstall =''moveToOutput bin "$bin"'' however, because otherwise the build would fail. Not exactly sure if this is the correct way to do it, as the dev output was dealt with automatically.

@FRidh: Would you consider merging?

The following tests FAILED:
        127 - HDF_TEST-testhdf-shared (Failed)
        128 - HDF_TEST-buffer-shared (Failed)
        133 - MFHDF_TEST-cdftest-shared (Failed)
        134 - MFHDF_TEST-hdfnctest-shared (Failed)
Errors while running CTest

builder for ‘/nix/store/cmjc162yw5haxd0qws7r2c12hlbvw3za-hdf-4.2.12.drv’ failed with exit code 8
error: build of ‘/nix/store/cmjc162yw5haxd0qws7r2c12hlbvw3za-hdf-4.2.12.drv’ failed

Some of the errors that I could find in the log:

/build/hdf-4.2.12/build/bin/testhdf-shared: error while loading shared libraries: libhdf.so.4.2.12: cannot open shared object file: No such file or directory
/build/hdf-4.2.12/build/bin/hdfnctest-shared: error while loading shared libraries: libmfhdf.so.4.2.12: cannot open shared object file: No such file or directory

I think you might want to undo the multiple outputs. I tried to use them with hdf5 as well after I suggested it to you, but it didn't work out at all.

Okay, so I tried myself without multiple outputs, and I still get the errors.

Do you have a NixOS machine with sandbox that you could test on?

Oh. Didn't expect that the NixOS build would fail. I'll spin up a VM and see what's the deal. I suppose it will be the same problem as on the mac, where I need to set $DYLD_LIBRARY_PATH for the checkPhase. The test-binaries don't seem to know that they should look for the library in the build directory.

Adding an "export LD_LIBRARY_PATH=$(pwd)/bin" seemed to help.

@FRidh: Should work by now.