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[Static Linux] Add build scripts.
Add the build scripts for the fully static Linux SDK. rdar://129171568
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‎swift-ci/sdks/static-linux/Dockerfile

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# ===----------------------------------------------------------------------===
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#
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# Swift Static SDK for Linux: Docker-based build
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#
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# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2024 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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#
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# ===----------------------------------------------------------------------===
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FROM ubuntu:22.04
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# Versions to fetch
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ARG SWIFT_VERSION=scheme:release/6.0
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ARG MUSL_VERSION=1.2.5
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ARG LIBXML2_VERSION=2.12.7
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ARG CURL_VERSION=8.7.1
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ARG BORINGSSL_VERSION=fips-20220613
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ARG ICU_VERSION=maint/maint-69
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ARG ZLIB_VERSION=1.3.1
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# ............................................................................
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# Install development tools
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RUN apt-get -q update \
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&& DEBIAN_FRONTEND=noninteractive apt-get -q install -y \
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build-essential \
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cmake \
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ninja-build \
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python3 \
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golang \
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git \
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gnupg2 \
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libsqlite3-dev \
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libcurl4-openssl-dev \
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libedit-dev \
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libicu-dev \
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libncurses5-dev \
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libpython3-dev \
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libsqlite3-dev \
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libxml2-dev \
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uuid-dev \
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uuid-runtime \
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tzdata \
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curl \
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&& rm -rf /var/lib/apt-lists/*
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# Install Swift
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ARG SWIFT_SIGNING_KEY=E813C892820A6FA13755B268F167DF1ACF9CE069
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ARG SWIFT_PLATFORM=ubuntu
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ARG OS_MAJOR_VER=22
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ARG OS_MINOR_VER=04
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ARG SWIFT_WEBROOT=https://download.swift.org/swift-6.0-branch
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ENV SWIFT_SIGNING_KEY=$SWIFT_SIGNING_KEY \
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SWIFT_PLATFORM=$SWIFT_PLATFORM \
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OS_MAJOR_VER=$OS_MAJOR_VER \
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OS_MINOR_VER=$OS_MINOR_VER \
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OS_VER=$SWIFT_PLATFORM$OS_MAJOR_VER.$OS_MINOR_VER \
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SWIFT_WEBROOT="$SWIFT_WEBROOT/$SWIFT_PLATFORM$OS_MAJOR_VER$OS_MINOR_VER"
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COPY scripts/install-swift.sh /scripts/install-swift.sh
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RUN chmod ugo+x /scripts/install-swift.sh
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RUN /scripts/install-swift.sh
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ENV PATH="/usr/local/swift/bin:${PATH}"
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ENV SWIFT_VERSION=$SWIFT_VERSION \
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MUSL_VERSION=$MUSL_VERSION \
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LIBXML2_VERSION=$LIBXML2_VERSION \
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CURL_VERSION=$CURL_VERSION \
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BORINGSSL_VERSION=$BORINGSSL_VERSION \
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ICU_VERSION=$ICU_VERSION \
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ZLIB_VERSION=$ZLIB_VERSION
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COPY scripts /scripts
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RUN chmod ugo+x /scripts/*
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COPY resources /resources
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# Create a user
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RUN groupadd -g 998 build-user && \
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useradd -m -r -u 998 -g build-user build-user
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USER build-user
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WORKDIR /home/build-user
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‎swift-ci/sdks/static-linux/README.md

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# Dockerfile-based build for Swift Static Linux SDK
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## What is this?
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This is a Dockerfile-based build set-up for the Swift Static Linux SDK.
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To use it, you need to build the Docker image with
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```shell
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$ docker build -t static-swift-linux .
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```
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then you can check-out the sources somewhere using
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```shell
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$ scripts/fetch-source.sh --clone-with-ssh --source-dir /path/to/source
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```
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and finally use the Docker image to do your build
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```shell
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$ mkdir /path/to/products
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$ docker run -it --rm \
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-v /path/to/source:/source \
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-v /path/to/products:/products \
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static-swift-linux \
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/scripts/build.sh --source-dir /source --products-dir /products
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```
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The artifact bundle should appear at `/path/to/products`.
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The `scripts/build.sh` script has a number of options you may wish to
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investigate. Similarly with the `scripts/fetch-source.sh` script.

‎swift-ci/sdks/static-linux/build

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#!/bin/bash
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#
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# ===----------------------------------------------------------------------===
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#
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# Swift Static SDK for Linux: Top-level Build Script
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#
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# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2024 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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#
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# ===----------------------------------------------------------------------===
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DOCKER=docker
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# Build the Docker image
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$(DOCKER) build -t static-swift-linux .
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# Check-out the sources
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scripts/fetch-source.sh --clone-with-ssh --source-dir source
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mkdir -p products
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# Run the build
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$(DOCKER) run -it --rm \
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-v ./source:/source \
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-v ./products:/products \
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static-swift-linux \
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/scripts/build.sh --source-dir /source --products-dir /products

‎swift-ci/sdks/static-linux/resources/fts/CMakeLists.txt

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# ===----------------------------------------------------------------------===
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#
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# Swift Static SDK for Linux: Build libfts
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#
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# This source file is part of the Swift.org open source project
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#
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# Copyright (c) 2024 Apple Inc. and the Swift project authors
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# Licensed under Apache License v2.0 with Runtime Library Exception
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#
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# See https://swift.org/LICENSE.txt for license information
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# See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
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#
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# ===----------------------------------------------------------------------===
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cmake_minimum_required(VERSION 3.22.1)
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project(fts)
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add_library(fts STATIC fts.c)
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set_target_properties(fts PROPERTIES PUBLIC_HEADER fts.h)
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target_include_directories(fts PRIVATE SYSTEM ${CMAKE_CURRENT_SOURCE_DIR})
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install(TARGETS fts
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LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
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PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})

‎swift-ci/sdks/static-linux/resources/fts/README.md

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What is this?
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=============
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Musl doesn't have fts in its libc. Alpine and other Musl-based
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distributions typically provide an fts implementation separately,
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using a derivative of NetBSD's fts, which is what you'll find in this
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directory.
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Typically they use the one from https://github.com/void-linux/musl-fts
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but that uses GNU autotools and annoyingly they haven't checked in the
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generated configure script. Not that it actually *needs* a configure
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script, because they know what C library they're using already.
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Anyway, I grabbed the fts sources from there and chucked them in this
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directory along with a CMakeLists.txt that lets us build them with
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CMake.
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What's the license?
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===================
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Being from NetBSD, it's the BSD license:
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Copyright (c) 1990, 1993, 1994
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The Regents of the University of California. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the University nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.

‎swift-ci/sdks/static-linux/resources/fts/VERSION

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1.2.7

‎swift-ci/sdks/static-linux/resources/fts/config.h

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/* Configure definitions for Musl */
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#ifndef FTS_CONFIG_H_
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#define FTS_CONFIG_H_
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// We have dirfd(), in <dirent.h>
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#define HAVE_DIRFD 1
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// MAX is defined in <sys/param.h>
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#define HAVE_DECL_MAX 1
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// UINTMAX_MAX is in <stdint.h>
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#define HAVE_DECL_UINTMAX_MAX 1
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// We don't have d_namlen
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//#undef HAVE_STRUCT_DIRENT_D_NAMLEN
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// DIR is opaque
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//#undef HAVE_DIR_DD_FD
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//#undef HAVE_DIR_D_FD
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#endif /* FTS_CONFIG_H_ */

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