What would it take to enable S3 support

[andreas-wilm]

Hi all,

what would it take to enable S3 access in grabix? I was hopeful/naive enough to think that it was as simple as replacing bgzf.c and linking against a newer version of htslib (with build-in S3 support via libcrytpo and libcurl) and recompile. index fails immediately because bgzf_open() complains with "could not open file" (that's after commenting bgzf_is_bgzf() out).

Any pointers as to how this could make to work would help!

Thanks,
Andreas