[swift-corelibs-dev] Wrapping up Swift 3 for swift-corelibs

[David P Grove]

Bug filed:  https://bugs.swift.org/browse/SR-2309

I've prototyped potential solution #2 this morning (embedding yet another
copy of the blocks runtime into libdispatch).    I need to do a little
cleanup of the build plumbing, but it is workable.

I have time to work on it this week once there is a consensus on the
approach.

--dave




From:	Daniel Dunbar <daniel_dunbar at apple.com>
To:	Chris Bailey <BAILEYC at uk.ibm.com>
Cc:	David P Grove/Watson/IBM at IBMUS, "swift-corelibs-dev at swift.org"
            <swift-corelibs-dev at swift.org>
Date:	08/03/2016 02:10 PM
Subject:	Re: [swift-corelibs-dev] Wrapping up Swift 3 for swift-corelibs
Sent by:	daniel_dunbar at apple.com



Can someone file a bug to track how we are going to resolve this issue, and
outline our options? I want to make sure we have enough eyes on it to make
sure we get what we need for Swift 3.

 - Daniel

      On Aug 1, 2016, at 3:08 AM, Chris Bailey <BAILEYC at uk.ibm.com> wrote:

      I had a quick conversation with Daniel Dunbar on this. Adding -Xcc
      -fblocks as a default option to Swift PM (on Linux). The wrinkle is
      the availability of the blocks runtime - it would either need to
      become a pre-req for Swift, or needs one to be built into the
      package.

      Chris




      From:        David P Grove via swift-corelibs-dev <
      swift-corelibs-dev at swift.org>
      To:        Swift corelibs dev <swift-corelibs-dev at swift.org>
      Date:        28/07/2016 18:50
      Subject:        Re: [swift-corelibs-dev] Wrapping up Swift 3 for
      swift-corelibs
      Sent by:        swift-corelibs-dev-bounces at swift.org



      Tony Parker wrote on 07/28/2016 01:41:55 PM:
      >
      > 1. Integrate swift-corelibs-dispatch into Foundation.

      Hi Tony,

      Hopefully this is on the task list already, but if it isn't we should
      add it before it gets to be too late to change the compiler...

      When compiling a Swift program on Linux that imports Dispatch (or
      Foundation once the integration is done), the user has to give the
      extra compilation flags -Xcc -fblocks to enable block support.

      We really need to land a change somewhere so that either (1) blocks
      support is always on for Linux or (2) importing Dispatch or
      Foundation automatically turns on blocks support.

      I have some time today and tomorrow that I could use to work on this
      if no one is handling it already, but I'm not sure how best to tackle
      the problem.  Suggestions?

      --dave
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