[swift-corelibs-dev] Troubleshooting libdispatch build failure

[Jean-Pierre Simard]

Thanks for getting back to me so quickly Dave.

This worked last week, but didn't yesterday when I tried again. My "last
few days" guess might actually just be since yesterday morning. Maybe
something's changed since your last checkouts from yesterday morning?
Running these commands on a fresh Ubuntu 16.04 machine (i.e. no build
cache) gives me the output I shared above.

apt-get update && \
    apt-get install -y \
      autoconf \
      clang \
      cmake \
      git \
      icu-devtools \
      libblocksruntime-dev \
      libbsd-dev \
      libedit-dev \
      libicu-dev \
      libkqueue-dev \
      libncurses5-dev \
      libpython-dev \
      libsqlite3-dev \
      libtool \
      libxml2-dev \
      ninja-build \
      pkg-config \
      python \
      swig \
      uuid-dev
git clone https://github.com/apple/swift.git
cd swift
utils/update-checkout --clone
utils/build-script --libdispatch

I suspect that the Xcode 8 beta 2 set of changes that landed yesterday may
have caused this. There were patches on all sorts of repos (swift-llvm,
swift-clang, swift, etc).

On Wed, Jul 6, 2016 at 4:52 PM, David P Grove <groved at us.ibm.com> wrote:

> Hi,
>
> There has been some churn over the last few days, but I am successfully
> using util/build-script to build libdispatch with the current tip of the
> master branch of libdispatch (and a swift checkout of the master branch
> from yesterday morning). Maybe updating the checkout of libdispatch would
> help?
>
> --dave
>
> [image: Inactive hide details for Jean-Pierre Simard ---07/06/2016
> 04:28:46 PM---Up until a few days ago, running 'util/build-script --]Jean-Pierre
> Simard ---07/06/2016 04:28:46 PM---Up until a few days ago, running
> 'util/build-script --libdispatch' completed successfully.
>
> From: Jean-Pierre Simard <jp at jpsim.com>
> To: swift-corelibs-dev at swift.org
> Cc: David P Grove/Watson/IBM at IBMUS
> Date: 07/06/2016 04:28 PM
> Subject: Troubleshooting libdispatch build failure
> ------------------------------
>
>
>
> Up until a few days ago, running 'util/build-script --libdispatch'
> completed successfully.
>
> Now it fails, generating the following errors. Any ideas on how to resolve
> these? Or other ways people are using to build libdispatch at the moment?
> Thanks!
>
> /bin/bash ../libtool  --tag=CXX   --mode=compile
> /build/Ninja-DebugAssert/llvm-linux-x86_64/bin/clang++ -DHAVE_CONFIG_H -I.
> -I//swift-corelibs-libdispatch/src -I../config  -I..
> -I//swift-corelibs-libdispatch -I//swift-corelibs-libdispatch/private
> -DDISPATCH_USE_DTRACE=0 -I//swift-corelibs-libdispatch/libpwq/include -Wall
> -fvisibility=hidden -momit-leaf-frame-pointer  -I/usr/include/kqueue
> -isystem /usr/include/bsd -DLIBBSD_OVERLAY -fblocks -std=gnu++11
> -fno-exceptions -g -O2 -c -o swift/libdispatch_la-DispatchStubs.lo `test -f
> 'swift/DispatchStubs.cc' || echo
> '//swift-corelibs-libdispatch/src/'`swift/DispatchStubs.cc
> libtool: compile:  /build/Ninja-DebugAssert/llvm-linux-x86_64/bin/clang++
> -DHAVE_CONFIG_H -I. -I//swift-corelibs-libdispatch/src -I../config -I..
> -I//swift-corelibs-libdispatch -I//swift-corelibs-libdispatch/private
> -DDISPATCH_USE_DTRACE=0 -I//swift-corelibs-libdispatch/libpwq/include -Wall
> -fvisibility=hidden -momit-leaf-frame-pointer -I/usr/include/kqueue
> -isystem /usr/include/bsd -DLIBBSD_OVERLAY -fblocks -std=gnu++11
> -fno-exceptions -g -O2 -c
> //swift-corelibs-libdispatch/src/swift/DispatchStubs.cc  -fPIC -DPIC -o
> swift/.libs/libdispatch_la-DispatchStubs.o
> /build/Ninja-DebugAssert/swift-linux-x86_64/bin/swiftc -frontend -c
> //swift-corelibs-libdispatch/src/swift/Block.swift
> //swift-corelibs-libdispatch/src/swift/Data.swift
> //swift-corelibs-libdispatch/src/swift/Dispatch.swift
> //swift-corelibs-libdispatch/src/swift/IO.swift
> //swift-corelibs-libdispatch/src/swift/Private.swift
> //swift-corelibs-libdispatch/src/swift/Queue.swift
> //swift-corelibs-libdispatch/src/swift/Source.swift
> //swift-corelibs-libdispatch/src/swift/Time.swift
> //swift-corelibs-libdispatch/src/swift/Wrapper.swift -primary-file
> //swift-corelibs-libdispatch/src/swift/Block.swift \
> -Xcc
> -fmodule-map-file=//swift-corelibs-libdispatch/dispatch/module.modulemap
> -I//swift-corelibs-libdispatch -Xcc -fblocks -module-name Dispatch
> -module-link-name dispatch \
> -o /build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o
> -emit-module-path
> /build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o.~partial.swiftmodule
> \
> -emit-module-doc-path
> /build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o.~partial.swiftdoc
> -emit-dependencies-path
> /build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o.d \
> -emit-reference-dependencies-path
> /build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o.swiftdeps
> \
> -module-cache-path ..
> <module-includes>:1:10: note: in file included from <module-includes>:1:
> #include "dispatch.h"
>          ^
> //swift-corelibs-libdispatch/dispatch/dispatch.h:99:10: error:
> 'os/object.h' file not found
> #include <os/object.h>
>          ^
> //swift-corelibs-libdispatch/src/swift/Block.swift:13:8: error: could not
> build Objective-C module 'CDispatch'
> import CDispatch
>        ^
> Makefile:956: recipe for target
> '/build/Ninja-DebugAssert/libdispatch-linux-x86_64/src/swift/Block.o' failed
>
>
>
>
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