Cargo Features

hdf5-src has no features set by default.

[dependencies]
hdf5-src = { version = "0.8.1", features = ["hl", "zlib", "threadsafe", "deprecated"] }
hl
zlib = libz-sys
threadsafe
deprecated

Features from optional dependencies

In crates that don't use the dep: syntax, optional dependencies automatically become Cargo features. These features may have been created by mistake, and this functionality may be removed in the future.

libz-sys zlib?