Set CMAKE_OSX_DEPLOYMENT_TARGET

[sbc100]

This version represents that current reality although we
would like to lower this for increased compatibility. See: #4299

[dschuff]

Before we land this, we should make sure that this option gets properly overidden if set on the command line (since that's exactly what we are currently doing for emscripten-releases).

[sbc100]

Before we land this, we should make sure that this option gets properly overidden if set on the command line (since that's exactly what we are currently doing for emscripten-releases).

I'm confident enough that that is how it works... if you want to double check please do but I'm tempted to just land it.

[sbc100]

Before we land this, we should make sure that this option gets properly overidden if set on the command line (since that's exactly what we are currently doing for emscripten-releases).

I'm confident enough that that is how it works... if you want to double check please do but I'm tempted to just land it.

See https://cmake.org/cmake/help/latest/command/set.html#set-cache-entry

[dschuff]

FTR, I checked after the DEPS roll and it looks good.