Temp fix for #8690: added uv.h and dependencies to distribution.

[twadleigh]

A stopgap measure while #8880 is pending.
Should address #8690.

[tkelman]

Ref how this was done before #8024 which took this out of the install. We probably don't want to do this when we're using a system libuv, though we have a bunch of work to do to reconcile our fork with upstream to make this realistically possible.

[nalimilan]

Maybe you could put the install command within an ifeq($(USE_SYSTEM_LIBUV),0) block so that it doesn't get installed when one day all patches will have been moved upstream.

[twadleigh]

@tkelman, @nalimilan, thanks for the inputs. I'll amend accordingly.

[twadleigh]

bump

[JeffBezanson]

Why do we need to install libuv.a?

[twadleigh]

@JeffBezanson, we don't need to install libuv.a for my purposes. This was my attempt to follow @tkelman 's recommendation of taking #8024 as the guide for getting uv.h and friends back. I'll remove the libuv.a part.

[tkelman]

I could use libuv.a to save about a minute on appveyor, but I don't think anyone else was using it.

[tkelman]

shall we @JuliaBackports this while #8880 is pending?

[ivarne]

If a temporary fix is used on master, I think it should be acceptable on release-0.3 also.

[twadleigh]

I'll prep a PR for the backport.