Update libc crate to 0.2.62

This change updates the libc crate to version 0.2.62.

Import subrepo libc/:libc at 37f8f8dc233a79ea9cc89b102aa30ff6e402fe94

11 files changed, 402 insertions, 41 deletions

diff --git a/libc/ci/README.md b/libc/ci/README.md
index 28152e5..3123553 100644
--- a/libc/ci/README.md
+++ b/libc/ci/README.md
@@ -8,19 +8,12 @@ this project.
 
 First up, let's talk about the files in this directory:
 
-* `run-travis.sh` - a shell script run by all Travis builders, this is
-  responsible for setting up the rest of the environment such as installing new
-  packages, downloading Rust target libraries, etc.
+* `run-docker.sh` - a shell script run by most builders, it will execute
+  `run.sh` inside a Docker container configured for the target.
 
 * `run.sh` - the actual script which runs tests for a particular architecture.
-  Called from the `run-travis.sh` script this will run all tests for the target
-  specified.
 
-* `cargo-config` - Cargo configuration of linkers to use copied into place by
-  the `run-travis.sh` script before builds are run.
-
-* `dox.sh` - script called from `run-travis.sh` on only the linux 64-bit nightly
-  Travis bots to build documentation for this crate.
+* `dox.sh` - build the documentation of the crate and publish it to gh-pages.
 
 * `landing-page-*.html` - used by `dox.sh` to generate a landing page for all
   architectures' documentation.
diff --git a/libc/ci/azure-install-rust.yml b/libc/ci/azure-install-rust.yml
new file mode 100644
index 0000000..eba0669
--- /dev/null
+++ b/libc/ci/azure-install-rust.yml
@@ -0,0 +1,78 @@
+steps:
+  - bash: |
+      set -ex
+      toolchain=$TOOLCHAIN
+      if [ "$toolchain" = "" ]; then
+        toolchain=nightly
+      fi
+      if command -v rustup; then
+        rustup update $toolchain
+        rustup default $toolchain
+      else
+        curl https://sh.rustup.rs -sSf | sh -s -- -y --default-toolchain $toolchain
+        echo "##vso[task.prependpath]$HOME/.cargo/bin"
+      fi
+    displayName: Install rust (unix)
+    condition: ne( variables['Agent.OS'], 'Windows_NT' )
+  - script: |
+      @echo on
+      if not defined TOOLCHAIN set TOOLCHAIN=nightly
+      rustup update %TOOLCHAIN%-%TARGET%
+      rustup default %TOOLCHAIN%-%TARGET%
+    displayName: Install rust (windows)
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )
+  - script: |
+      set -ex
+      if [ -n "${TARGET}" ]; then
+        rustup target add $TARGET
+      fi
+    condition: ne( variables['Agent.OS'], 'Windows_NT' )
+    displayName: Install target (unix)
+  - script: |
+      @echo on
+      if defined TARGET rustup target add %TARGET%
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )
+    displayName: Install target (windows)
+  - script: |
+      @echo on
+      if "%ARCH%" == "i686" choco install mingw --x86 --force
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )
+    displayName: Install MinGW32 (windows)
+  - bash: |
+      set -ex
+      gcc -print-search-dirs
+      find "C:\ProgramData\Chocolatey" -name "crt2*"
+      find "C:\ProgramData\Chocolatey" -name "dllcrt2*"
+      find "C:\ProgramData\Chocolatey" -name "libmsvcrt*"
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )	
+    displayName: Find GCC libraries (windows)
+  - bash: |
+      set -ex
+      if [[ -n ${ARCH_BITS} ]]; then
+        for i in crt2.o dllcrt2.o libmingwex.a libmsvcrt.a ; do
+          cp -f "/C/ProgramData/Chocolatey/lib/mingw/tools/install/mingw${ARCH_BITS}/${ARCH}-w64-mingw32/lib/$i" "`rustc --print sysroot`/lib/rustlib/${TARGET}/lib"
+        done
+      fi
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )	
+    displayName: Fix MinGW (windows)
+  - bash: |
+        set -ex
+        rustc -Vv
+        cargo -V
+        rustup -Vv
+        rustup show
+        which rustc
+        which cargo
+        which rustup
+    displayName: Query rust and cargo versions
+  - script: |
+      @echo on
+      where gcc
+    condition: eq( variables['Agent.OS'], 'Windows_NT' )
+    displayName: Query gcc path
+  - bash: |
+      set -ex
+      cargo generate-lockfile
+      cargo generate-lockfile --manifest-path libc-test/Cargo.toml
+    displayName: Generate lockfiles
+
diff --git a/libc/ci/azure.yml b/libc/ci/azure.yml
new file mode 100644
index 0000000..4526361
--- /dev/null
+++ b/libc/ci/azure.yml
@@ -0,0 +1,222 @@
+variables:
+  - group: secrets
+resources:
+  repositories:
+    - repository: rustinfra
+      type: github
+      name: rust-lang/simpleinfra
+      endpoint: gnzlbg
+trigger: ["auto-libc","try"]
+pr: ["master"]
+
+jobs:
+  - job: DockerLinuxTier1
+    pool:
+      vmImage: ubuntu-16.04
+    steps:
+      - template: azure-install-rust.yml
+      - bash: LIBC_CI=1 sh ./ci/run-docker.sh $TARGET
+        displayName: Execute run-docker.sh
+    strategy:
+      matrix:
+        i686-unknown-linux-gnu:
+          TARGET: i686-unknown-linux-gnu
+        x86_64-unknown-linux-gnu:
+          TARGET: x86_64-unknown-linux-gnu
+
+  - job: DockerLinuxTier2
+    dependsOn: DockerLinuxTier1
+    pool:
+      vmImage: ubuntu-16.04
+    steps:
+      - template: azure-install-rust.yml
+      - bash: LIBC_CI=1 sh ./ci/run-docker.sh $TARGET
+        displayName: Execute run-docker.sh
+    strategy:
+      matrix:
+        aarch64-unknown-linux-android:
+          TARGET: aarch64-linux-android
+        aarch64-unknown-linux-gnu:
+          TARGET: aarch64-unknown-linux-gnu
+        aarch64-unknown-linux-musl:
+          TARGET: aarch64-unknown-linux-musl
+        arm-linux-androideabi:
+          TARGET: arm-linux-androideabi
+        arm-unknown-linux-gnueabihf:
+          TARGET: arm-unknown-linux-gnueabihf
+        arm-unknown-linux-musleabihf:
+          TARGET: arm-unknown-linux-musleabihf
+        asmjs-unknown-emscripten:
+          TARGET: asmjs-unknown-emscripten
+        i686-linux-android:
+          TARGET: i686-linux-android
+        i686-unknown-linux-musl:
+          TARGET: i686-unknown-linux-musl
+        mips-unknown-linux-gnu:
+          TARGET: mips-unknown-linux-gnu
+        mips-unknown-linux-musl:
+          TARGET: mips-unknown-linux-musl
+        mips64-unknown-linux-gnuabi64:
+          TARGET: mips64-unknown-linux-gnuabi64
+        mips64el-unknown-linux-gnuabi64:
+          TARGET: mips64el-unknown-linux-gnuabi64
+        mipsel-unknown-linux-musl:
+          TARGET: mipsel-unknown-linux-musl
+        #powerpc-unknown-linux-gnu:
+        #  TARGET: powerpc-unknown-linux-gnu
+        powerpc64-unknown-linux-gnu:
+          TARGET: powerpc64-unknown-linux-gnu
+        powerpc64le-unknown-linux-gnu:
+          TARGET: powerpc64le-unknown-linux-gnu
+        #s390x-unknown-linux-gnu:
+        #  TARGET: s390x-unknown-linux-gnu
+        #wasm32-wasi
+        #  TARGET: wasm32-wasi
+        sparc64-unknown-linux-gnu:
+          TARGET: sparc64-unknown-linux-gnu
+        wasm32-unknown-emscripten:
+          TARGET: wasm32-unknown-emscripten
+        x86_64-linux-android:
+          TARGET: x86_64-linux-android
+        x86_64-unknown-linux-gnux32:
+          TARGET: x86_64-unknown-linux-gnux32
+        x86_64-unknown-linux-musl:
+          TARGET: x86_64-unknown-linux-musl
+
+  - job: DockerOSX64
+    pool:
+      vmImage: macos-10.14
+    steps:
+      - template: azure-install-rust.yml
+      - bash: LIBC_CI=1 sh ./ci/run.sh $TARGET
+        displayName: Execute run.sh
+    strategy:
+      matrix:
+        x86_64-apple-darwin:
+          TARGET: x86_64-apple-darwin
+
+  - job: DockerOSX32
+    pool:
+      vmImage: macos-10.13
+    steps:
+      - template: azure-install-rust.yml
+      - bash: LIBC_CI=1 sh ./ci/run.sh $TARGET
+        displayName: Execute run.sh
+    strategy:
+      matrix:
+        i686-apple-darwin:
+          TARGET: i686-apple-darwin
+
+  - job: Windows
+    pool:
+      vmImage: vs2017-win2016
+    steps:
+      - template: azure-install-rust.yml
+      - bash: LIBC_CI=1 sh ./ci/run.sh $TARGET
+        displayName: Execute run.sh
+    strategy:
+      matrix:
+        x86_64-pc-windows-gnu:
+          TARGET: x86_64-pc-windows-gnu
+          ARCH_BITS: 64
+          ARCH: x86_64
+        x86_64-pc-windows-msvc:
+          TARGET: x86_64-pc-windows-msvc
+        i686-pc-windows-gnu:
+          TARGET: i686-pc-windows-gnu
+          ARCH_BITS: 32
+          ARCH: i686
+        i686-pc-windows-msvc:
+          TARGET: i686-pc-windows-msvc
+
+  - job: StyleAndDocs
+    pool:
+      vmImage: ubuntu-16.04
+    steps:
+      - template: azure-install-rust.yml
+      - script: sh ci/style.sh
+        displayName: Check style
+      - script: sh ci/dox.sh
+        displayName: Generate documentation
+      - template: azure-configs/static-websites.yml@rustinfra
+        parameters:
+          deploy_dir: target/doc
+
+  # FIXME: re-enable these after the next release
+  #- job: SemverLinux
+  #  dependsOn: BuildChannelsLinux
+  #  continueOnError: true
+  #  pool:
+  #    vmImage: ubuntu-16.04
+  #  steps:
+  #    - template: azure-install-rust.yml
+  #    - script: sh ci/semver.sh linux
+  #      displayName: Check breaking changes
+
+  #- job: SemverOSX
+  #  dependsOn: BuildChannelsOSX
+  #  continueOnError: true
+  #  pool:
+  #    vmImage: macos-10.14
+  #  steps:
+  #    - template: azure-install-rust.yml
+  #    - script: sh ci/semver.sh osx
+  #      displayName: Check breaking changes
+
+  - job: BuildChannelsLinux
+    dependsOn: StyleAndDocs
+    pool:
+      vmImage: ubuntu-16.04
+    steps:
+      - template: azure-install-rust.yml
+      - script: sh ./ci/build.sh
+        displayName: Execute build.sh
+    strategy:
+      matrix:
+        stable:
+          TOOLCHAIN: stable
+        beta:
+          TOOLCHAIN: beta
+        nightly:
+          TOOLCHAIN: nightly
+        1.13.0:
+          TOOLCHAIN: 1.13.0
+        1.19.0:
+          TOOLCHAIN: 1.19.0
+        1.24.0:
+          TOOLCHAIN: 1.24.0
+        1.25.0:
+          TOOLCHAIN: 1.25.0
+        1.30.0:
+          TOOLCHAIN: 1.30.0
+    variables:
+      OS: linux
+
+  - job: BuildChannelsOSX
+    dependsOn: StyleAndDocs
+    pool:
+      vmImage: macos-10.13
+    steps:
+      - template: azure-install-rust.yml
+      - script: sh ./ci/build.sh
+        displayName: Execute build.sh
+    strategy:
+      matrix:
+        stable:
+          TOOLCHAIN: stable
+        beta:
+          TOOLCHAIN: beta
+        nightly:
+          TOOLCHAIN: nightly
+        1.13.0:
+          TOOLCHAIN: 1.13.0
+        1.19.0:
+          TOOLCHAIN: 1.19.0
+        1.24.0:
+          TOOLCHAIN: 1.24.0
+        1.25.0:
+          TOOLCHAIN: 1.25.0
+        1.30.0:
+          TOOLCHAIN: 1.30.0
+    variables:
+      OS: osx
diff --git a/libc/ci/build.sh b/libc/ci/build.sh
index 707dd4a..e63b4f7 100644
--- a/libc/ci/build.sh
+++ b/libc/ci/build.sh
@@ -5,13 +5,20 @@
 
 set -ex
 
-RUST=${TRAVIS_RUST_VERSION}
-OS=${TRAVIS_OS_NAME}
+: "${TOOLCHAIN?The TOOLCHAIN environment variable must be set.}"
+: "${OS?The OS environment variable must be set.}"
+
+RUST=${TOOLCHAIN}
 
 echo "Testing Rust ${RUST} on ${OS}"
 
+if [ "${TOOLCHAIN}" = "nightly" ] ; then
+    cargo +nightly install cargo-xbuild -Z install-upgrade
+    rustup component add rust-src
+fi
+
 test_target() {
-    CARGO="${1}"
+    BUILD_CMD="${1}"
     TARGET="${2}"
     NO_STD="${3}"
 
@@ -46,21 +53,21 @@ test_target() {
     fi
 
     # Test that libc builds without any default features (no libstd)
-    "$CARGO" "+${RUST}" build -vv $opt --no-default-features --target "${TARGET}"
+    cargo "+${RUST}" "${BUILD_CMD}" -vv $opt --no-default-features --target "${TARGET}"
 
     # Test that libc builds with default features (e.g. libstd)
     # if the target supports libstd
     if [ "$NO_STD" != "1" ]; then
-        "$CARGO" "+${RUST}" build -vv $opt --target "${TARGET}"
+        cargo "+${RUST}" "${BUILD_CMD}" -vv $opt --target "${TARGET}"
     fi
 
     # Test that libc builds with the `extra_traits` feature
-    "$CARGO" "+${RUST}" build -vv $opt --no-default-features --target "${TARGET}" \
+    cargo "+${RUST}" "${BUILD_CMD}" -vv $opt --no-default-features --target "${TARGET}" \
           --features extra_traits
 
     # Also test that it builds with `extra_traits` and default features:
     if [ "$NO_STD" != "1" ]; then
-        "$CARGO" "+${RUST}" build -vv $opt --target "${TARGET}" \
+        cargo "+${RUST}" "${BUILD_CMD}" -vv $opt --target "${TARGET}" \
               --features extra_traits
     fi
 }
@@ -115,6 +122,9 @@ i586-unknown-linux-musl \
 x86_64-unknown-cloudabi \
 "
 
+# FIXME: temporarirly disable the redox target
+# https://github.com/rust-lang/libc/issues/1457
+# x86_64-unknown-redox
 RUST_NIGHTLY_LINUX_TARGETS="\
 aarch64-fuchsia \
 armv5te-unknown-linux-gnueabi \
@@ -125,7 +135,6 @@ x86_64-fortanix-unknown-sgx \
 x86_64-fuchsia \
 x86_64-pc-windows-gnu \
 x86_64-unknown-linux-gnux32 \
-x86_64-unknown-redox \
 "
 
 RUST_OSX_TARGETS="\
@@ -167,11 +176,13 @@ case "${OS}" in
 esac
 
 for TARGET in $TARGETS; do
-    test_target cargo "$TARGET"
+    test_target build "$TARGET"
 done
 
 # FIXME: https://github.com/rust-lang/rust/issues/58564
 # sparc-unknown-linux-gnu
+# FIXME: https://github.com/rust-lang/rust/issues/62932
+# thumbv6m-none-eabi
 RUST_LINUX_NO_CORE_TARGETS="\
 aarch64-pc-windows-msvc \
 aarch64-unknown-cloudabi \
@@ -184,6 +195,7 @@ armebv7r-none-eabihf \
 armv7-unknown-cloudabi-eabihf \
 armv7r-none-eabi \
 armv7r-none-eabihf \
+hexagon-unknown-linux-musl \
 i586-pc-windows-msvc \
 i686-pc-windows-msvc \
 i686-unknown-cloudabi \
@@ -199,7 +211,7 @@ powerpc64-unknown-freebsd \
 riscv32imac-unknown-none-elf \
 riscv32imc-unknown-none-elf \
 sparc64-unknown-netbsd \
-thumbv6m-none-eabi \
+
 thumbv7em-none-eabi \
 thumbv7em-none-eabihf \
 thumbv7m-none-eabi \
@@ -212,10 +224,34 @@ x86_64-unknown-haiku \
 x86_64-unknown-hermit \
 x86_64-unknown-l4re-uclibc \
 x86_64-unknown-openbsd \
+armv7-wrs-vxworks \
+aarch64-wrs-vxworks \
+i686-wrs-vxworks \
+x86_64-wrs-vxworks \
+powerpc-wrs-vxworks \
+powerpc-wrs-vxworks-spe \
+powerpc64-wrs-vxworks \
 "
 
 if [ "${RUST}" = "nightly" ] && [ "${OS}" = "linux" ]; then
     for TARGET in $RUST_LINUX_NO_CORE_TARGETS; do
-        test_target xargo "$TARGET" 1
+        test_target xbuild "$TARGET" 1
     done
+
+    # Nintendo switch
+    cargo clean
+    mkdir -p target
+    (
+        cd target
+        wget https://github.com/devkitPro/pacman/releases/download/devkitpro-pacman-1.0.1/devkitpro-pacman.deb
+        sudo dpkg -i devkitpro-pacman.deb
+        sudo dkp-pacman -Sy
+        sudo dkp-pacman -Syu
+        sudo dkp-pacman -S -v --noconfirm switch-dev devkitA64
+    )
+    cp ci/switch.json switch.json
+    PATH="$PATH:/opt/devkitpro/devkitA64/bin"
+    PATH="$PATH:/opt/devkitpro/tools/bin"
+    cargo xbuild --target switch.json
 fi
+
diff --git a/libc/ci/docker/wasm32-wasi/Dockerfile b/libc/ci/docker/wasm32-wasi/Dockerfile
index d963a44..eb3b5ff 100644
--- a/libc/ci/docker/wasm32-wasi/Dockerfile
+++ b/libc/ci/docker/wasm32-wasi/Dockerfile
@@ -60,7 +60,7 @@ ENV PATH=/root/.cargo/bin:$PATH
 RUN apt-get install -y --no-install-recommends python
 RUN git clone --recursive https://github.com/CraneStation/wasmtime wasmtime && \
   cd wasmtime && \
-  git reset --hard 67edb00f29b62864b00179fe4bfa99bc29973285
+  git reset --hard a2647878977726935c3d04c05cabad9607ec7606
 RUN cargo build --release --manifest-path wasmtime/Cargo.toml
 
 # And finally in the last image we're going to assemble everything together.
diff --git a/libc/ci/dox.sh b/libc/ci/dox.sh
index ce55081..febe18b 100644
--- a/libc/ci/dox.sh
+++ b/libc/ci/dox.sh
@@ -13,6 +13,14 @@ PLATFORM_SUPPORT=platform-support.md
 rm -rf $TARGET_DOC_DIR
 mkdir -p $TARGET_DOC_DIR
 
+if ! rustc --version | grep -E "nightly" ; then
+    echo "Building the documentation requires a nightly Rust toolchain"
+    exit 1
+fi
+
+rustup component add rust-src
+cargo +nightly install cargo-xbuild -Z install-upgrade
+
 # List all targets that do currently build successfully:
 # shellcheck disable=SC1003
 grep '[\d|\w|-]* \\' ci/build.sh > targets
@@ -39,10 +47,13 @@ while read -r target; do
 
     rustup target add "${target}" || true
 
+    # Enable extra configuration flags:
+    export RUSTDOCFLAGS="--cfg freebsd11"
+
     # If cargo doc fails, then try xargo:
     if ! cargo doc --target "${target}" \
              --no-default-features  --features extra_traits ; then
-        xargo doc --target "${target}" \
+        cargo xdoc --target "${target}" \
               --no-default-features  --features extra_traits
     fi
 
@@ -61,10 +72,3 @@ set -x
 
 # Copy the licenses
 cp LICENSE-* $TARGET_DOC_DIR/
-
-# If we're on travis, not a PR, and on the right branch, publish!
-if [ "$TRAVIS_PULL_REQUEST" = "false" ] && [ "$TRAVIS_BRANCH" = "master" ]; then
-  pip install ghp_import --install-option="--prefix=$HOME/.local"
-  "${HOME}/.local/bin/ghp-import" $TARGET_DOC_DIR
-  git push -qf "https://${GH_TOKEN}@github.com/${TRAVIS_REPO_SLUG}.git" gh-pages
-fi
diff --git a/libc/ci/run-docker.sh b/libc/ci/run-docker.sh
index c656f59..3c0736a 100755
--- a/libc/ci/run-docker.sh
+++ b/libc/ci/run-docker.sh
@@ -5,6 +5,9 @@
 
 set -ex
 
+echo "${HOME}"
+pwd
+
 run() {
     echo "Building docker container for target ${1}"
 
@@ -18,19 +21,20 @@ run() {
     fi
 
     docker run \
-      --user "$(id -u)":"$(id -g)" \
       --rm \
-      --init \
-      --volume "${HOME}/.cargo":/cargo \
-      $kvm \
+      --user "$(id -u)":"$(id -g)" \
+      --env LIBC_CI \
       --env CARGO_HOME=/cargo \
+      --env CARGO_TARGET_DIR=/checkout/target \
+      --volume "$(dirname "$(dirname "$(command -v cargo)")")":/cargo \
       --volume "$(rustc --print sysroot)":/rust:ro \
       --volume "$(pwd)":/checkout:ro \
       --volume "$(pwd)"/target:/checkout/target \
-      --env CARGO_TARGET_DIR=/checkout/target \
+      $kvm \
+      --init \
       --workdir /checkout \
       libc \
-      ci/run.sh "${1}"
+      sh -c "HOME=/tmp PATH=\$PATH:/rust/bin exec ci/run.sh ${1}"
 }
 
 if [ -z "${1}" ]; then
diff --git a/libc/ci/run.sh b/libc/ci/run.sh
index 8c56979..6f2ca11 100755
--- a/libc/ci/run.sh
+++ b/libc/ci/run.sh
@@ -87,8 +87,6 @@ if [ "$TARGET" = "x86_64-unknown-linux-gnux32" ]; then
   opt="--release"
 fi
 
-export LIBC_CI=1
-
 cargo test -vv $opt --no-default-features --manifest-path libc-test/Cargo.toml \
       --target "${TARGET}"
 
diff --git a/libc/ci/semver.sh b/libc/ci/semver.sh
index ac6be36..3412501 100644
--- a/libc/ci/semver.sh
+++ b/libc/ci/semver.sh
@@ -4,10 +4,17 @@
 
 set -ex
 
-OS=${TRAVIS_OS_NAME}
+OS=${1}
 
 echo "Testing Semver on ${OS}"
 
+if ! rustc --version | grep -E "nightly" ; then
+    echo "Building semverver requires a nightly Rust toolchain"
+    exit 1
+fi
+
+cargo +nightly install semverver -Z install-upgrade
+
 TARGETS=
 case "${OS}" in
     *linux*)
diff --git a/libc/ci/style.rs b/libc/ci/style.rs
index 481f57f..70fc0a0 100644
--- a/libc/ci/style.rs
+++ b/libc/ci/style.rs
@@ -117,7 +117,7 @@ fn check_style(file: &str, path: &Path, err: &mut Errors) {
         } else {
             prev_blank = false;
         }
-        if line != line.trim_right() {
+        if line != line.trim_end() {
             err.error(path, i, "trailing whitespace");
         }
         if line.contains("\t") {
@@ -139,7 +139,7 @@ fn check_style(file: &str, path: &Path, err: &mut Errors) {
             }
         }
 
-        let line = line.trim_left();
+        let line = line.trim_start();
         let is_pub = line.starts_with("pub ");
         let line = if is_pub {&line[4..]} else {line};
 
diff --git a/libc/ci/style.sh b/libc/ci/style.sh
new file mode 100644
index 0000000..a6a0017
--- /dev/null
+++ b/libc/ci/style.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env sh
+
+set -ex
+
+rustc ci/style.rs && ./style src
+
+if rustup component add rustfmt-preview ; then
+    which rustfmt
+    rustfmt -V
+    cargo fmt --all -- --check
+fi
+
+if shellcheck --version ; then
+    shellcheck -e SC2103 ci/*.sh
+else
+    echo "shellcheck not found"
+    exit 1
+fi
+