Installing JLD on Mac requires Command Line Tools (CLT)

[jwmi]

Hi, Just doing Pkg.add("JLD") results in HDF5 build errors on Mac OS X, unless CLT is already installed. A popup window comes up to install CLT, but even if you select Install, there are still errors.

Perhaps the README could suggest running xcode-select --install in Terminal (and clicking Install, not Get Xcode) before doing Pkg.add("JLD"). Or, even better, the JLD installation could install CLT automatically?

Thanks!! Jeff