Clarify the relation to bindeps?

[barcharcraz]

I'm a bit confused about what this package provides when compared to bindeps.jl, when should I use bindeps vs this? Do they complement or replace each other?

[ararslan]

BinDeps is effectively end-of-life; going forward, packages with binary dependencies should use BinaryBuilder and BinaryProvider.

[Gnimuc]

BinaryBuilder and BinaryProvider are often called BB2 aka BinDeps2.

[barcharcraz]

OK let's add some info to the readmes of the three packages then :)

[ararslan]

It should also be noted that not all libraries support cross-compilation, which is what BinaryBuilder uses to build binary dependencies. One particularly notable example is HDF5, which at least for now continues to require BinDeps since there isn't currently a way to provide it with BinaryBuilder and BinaryProvider.