[ci] Use Ubuntu 22.04 as `ubuntu-latest` at CI (fixes #5186) (#5288)

a1748932 · Nikita Titov · GitHub · 9afd8b93 · a1748932 · a1748932
Unverified Commit a1748932 authored Dec 15, 2022 by Nikita Titov Committed by GitHub Dec 15, 2022
12 changed files
--- a/.ci/setup.sh
+++ b/.ci/setup.sh
@@ -42,13 +42,13 @@ else  # Linux
            iputils-ping \
            jq \
            libcurl4 \
-            libicu66 \
+            libicu-dev \
-            libssl1.1 \
+            libssl-dev \
            libunwind8 \
            locales \
            netcat \
            unzip \
-            zip
+            zip || exit -1
        if [[ $COMPILER == "clang" ]]; then
            sudo apt-get install --no-install-recommends -y \
                clang \
@@ -60,6 +60,10 @@ else  # Linux
        sudo locale-gen ${LANG}
        sudo update-locale
    fi
+    if [[ $TASK == "r-package" ]] && [[ $COMPILER == "clang" ]]; then
+        sudo apt-get install --no-install-recommends -y \
+            libomp-dev
+    fi
    if [[ $TASK == "mpi" ]]; then
        if [[ $IN_UBUNTU_LATEST_CONTAINER == "true" ]]; then
            sudo apt-get update
@@ -75,10 +79,10 @@ else  # Linux
    fi
    if [[ $TASK == "gpu" ]]; then
        if [[ $IN_UBUNTU_LATEST_CONTAINER == "true" ]]; then
-            sudo add-apt-repository ppa:mhier/libboost-latest -y
            sudo apt-get update
            sudo apt-get install --no-install-recommends -y \
                libboost1.74-dev \
+                libboost-filesystem1.74-dev \
                ocl-icd-opencl-dev
        else  # in manylinux image
            sudo yum update -y

--- a/.github/workflows/linkchecker.yml
+++ b/.github/workflows/linkchecker.yml
@@ -17,7 +17,7 @@ env:
 jobs:
  check-links:
    timeout-minutes: 60
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

--- a/.github/workflows/no-response.yml
+++ b/.github/workflows/no-response.yml
@@ -9,7 +9,7 @@ on:
 jobs:
  noResponse:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    steps:
      - uses: lee-dohm/no-response@v0.5.0
        with:

--- a/.github/workflows/optional_checks.yml
+++ b/.github/workflows/optional_checks.yml
@@ -9,7 +9,7 @@ on:
 jobs:
  all-successful:
    timeout-minutes: 120
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    steps:
      - name: Checkout repository
        uses: actions/checkout@v3

--- a/.github/workflows/r_configure.yml
+++ b/.github/workflows/r_configure.yml
@@ -9,7 +9,7 @@ jobs:
    name: r-configure
    timeout-minutes: 60
    runs-on: ubuntu-latest
-    container: "ubuntu:20.04"
+    container: "ubuntu:22.04"
    steps:
      - name: Install essential software before checkout
        run: |

--- a/.github/workflows/r_package.yml
+++ b/.github/workflows/r_package.yml
@@ -33,22 +33,22 @@ jobs:
          ################
          # CMake builds #
          ################
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-package
            compiler: gcc
            r_version: 3.6
            build_type: cmake
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-package
            compiler: gcc
            r_version: 4.2
            build_type: cmake
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-package
            compiler: clang
            r_version: 3.6
            build_type: cmake
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-package
            compiler: clang
            r_version: 4.2
@@ -114,7 +114,7 @@ jobs:
            toolchain: MSYS
            r_version: 4.2
            build_type: cran
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-package
            compiler: gcc
            r_version: 4.2
@@ -127,7 +127,7 @@ jobs:
          ################
          # Other checks #
          ################
-          - os: ubuntu-latest
+          - os: ubuntu-22.04
            task: r-rchk
            compiler: gcc
            r_version: 4.2
@@ -151,7 +151,7 @@ jobs:
          CTAN_MIRROR: https://ctan.math.illinois.edu/systems/win32/miktex
          TINYTEX_INSTALLER: TinyTeX
      - name: Setup and run tests on Linux and macOS
-        if: matrix.os == 'macOS-latest' || matrix.os == 'ubuntu-latest'
+        if: matrix.os == 'macOS-latest' || matrix.os == 'ubuntu-22.04'
        shell: bash
        run: |
          export TASK="${{ matrix.task }}"
@@ -159,7 +159,7 @@ jobs:
          export GITHUB_ACTIONS="true"
          if [[ "${{ matrix.os }}" == "macOS-latest" ]]; then
              export OS_NAME="macos"
-          elif [[ "${{ matrix.os }}" == "ubuntu-latest" ]]; then
+          elif [[ "${{ matrix.os }}" == "ubuntu-22.04" ]]; then
              export OS_NAME="linux"
          fi
          export BUILD_DIRECTORY="$GITHUB_WORKSPACE"
@@ -181,9 +181,9 @@ jobs:
          $env:TASK = "${{ matrix.task }}"
          & "$env:GITHUB_WORKSPACE/.ci/test_windows.ps1"
  test-r-sanitizers:
-    name: r-sanitizers (ubuntu-latest, R-devel, ${{ matrix.compiler }} ASAN/UBSAN)
+    name: r-sanitizers (ubuntu-22.04, R-devel, ${{ matrix.compiler }} ASAN/UBSAN)
    timeout-minutes: 60
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    container: wch1/r-debug
    strategy:
      fail-fast: false
@@ -219,7 +219,7 @@ jobs:
  test-r-debian-clang:
    name: r-package (debian, R-devel, clang)
    timeout-minutes: 60
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    container: rhub/debian-clang-devel
    steps:
      - name: Install Git before checkout
@@ -248,7 +248,7 @@ jobs:
          fi
  all-successful:
    # https://github.community/t/is-it-possible-to-require-all-github-actions-tasks-to-pass-without-enumerating-them/117957/4?u=graingert
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    needs: [test, test-r-sanitizers, test-r-debian-clang]
    steps:
    - name: Note that all tests succeeded

--- a/.github/workflows/static_analysis.yml
+++ b/.github/workflows/static_analysis.yml
@@ -21,7 +21,7 @@ env:
 jobs:
  test:
    name: ${{ matrix.task }}
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    timeout-minutes: 60
    strategy:
      fail-fast: false
@@ -47,7 +47,7 @@ jobs:
  r-check-docs:
    name: r-package-check-docs
    timeout-minutes: 60
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    container: rocker/verse
    steps:
      - name: Trust git cloning LightGBM
@@ -82,7 +82,7 @@ jobs:
          fi
  all-successful:
    # https://github.community/t/is-it-possible-to-require-all-github-actions-tasks-to-pass-without-enumerating-them/117957/4?u=graingert
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-22.04
    needs: [test, r-check-docs]
    steps:
    - name: Note that all tests succeeded

--- a/.vsts-ci.yml
+++ b/.vsts-ci.yml
@@ -21,7 +21,7 @@ resources:
  - container: linux-artifact-builder
    image: lightgbm/vsts-agent:manylinux_2_28_x86_64
  - container: ubuntu-latest
-    image: 'ubuntu:20.04'
+    image: 'ubuntu:22.04'
    options: "--name ci-container -v /usr/bin/docker:/tmp/docker:ro"
  - container: rbase
    image: wch1/r-debug
@@ -151,7 +151,7 @@ jobs:
    OS_NAME: 'linux'
    PRODUCES_ARTIFACTS: 'true'
  pool:
-    vmImage: ubuntu-latest
+    vmImage: ubuntu-22.04
  timeoutInMinutes: 180
  strategy:
    matrix:
@@ -299,7 +299,7 @@ jobs:
 ###########################################
  condition: not(startsWith(variables['Build.SourceBranch'], 'refs/pull/'))
  pool:
-    vmImage: 'ubuntu-latest'
+    vmImage: 'ubuntu-22.04'
  container: rbase
  steps:
  - script: |
@@ -330,7 +330,7 @@ jobs:
  - R_artifact
  condition: and(succeeded(), not(startsWith(variables['Build.SourceBranch'], 'refs/pull/')))
  pool:
-    vmImage: 'ubuntu-latest'
+    vmImage: 'ubuntu-22.04'
  steps:
  # Create archives with complete source code included (with git submodules)
  - task: ArchiveFiles@2

--- a/R-package/AUTOCONF_UBUNTU_VERSION
+++ b/R-package/AUTOCONF_UBUNTU_VERSION
-2.69-11.1
+2.71-2
--- a/R-package/README.md
+++ b/R-package/README.md
@@ -352,22 +352,22 @@ This section briefly explains the key files for building a CRAN package. To upda
 At build time, `configure` will be run and used to create a file `Makevars`, using `Makevars.in` as a template.
 1. Edit `configure.ac`.
-2. Create `configure` with `autoconf`. Do not edit it by hand. This file must be generated on Ubuntu 20.04.
+2. Create `configure` with `autoconf`. Do not edit it by hand. This file must be generated on Ubuntu 22.04.
-    If you have an Ubuntu 20.04 environment available, run the provided script from the root of the `LightGBM` repository.
+    If you have an Ubuntu 22.04 environment available, run the provided script from the root of the `LightGBM` repository.
    ```shell
    ./R-package/recreate-configure.sh
    ```
-    If you do not have easy access to an Ubuntu 20.04 environment, the `configure` script can be generated using Docker by running the code below from the root of this repo.
+    If you do not have easy access to an Ubuntu 22.04 environment, the `configure` script can be generated using Docker by running the code below from the root of this repo.
    ```shell
    docker run \
        --rm \
        -v $(pwd):/opt/LightGBM \
        -w /opt/LightGBM \
-        -t ubuntu:20.04 \
+        -t ubuntu:22.04 \
        ./R-package/recreate-configure.sh
    ```

--- a/R-package/configure
+++ b/R-package/configure
 #! /bin/sh
 # Guess values for system-dependent variables and create Makefiles.
-# Generated by GNU Autoconf 2.69 for lightgbm 3.3.3.99.
+# Generated by GNU Autoconf 2.71 for lightgbm 3.3.3.99.
 #
 #
-# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+# Copyright (C) 1992-1996, 1998-2017, 2020-2021 Free Software Foundation,
+# Inc.
 #
 #
 # This configure script is free software; the Free Software Foundation
@@ -14,14 +15,16 @@
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
-else
+else $as_nop
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
@@ -31,46 +34,46 @@ esac
 fi
+# Reset variables that may have inherited troublesome values from
+# the environment.
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
+IFS=" ""	$as_nl"
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+PS1='$ '
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+PS2='> '
-# Prefer a ksh shell builtin over an external printf program on Solaris,
+PS4='+ '
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
+# Ensure predictable behavior from utilities with locale-dependent output.
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+LC_ALL=C
-  as_echo='print -r --'
+export LC_ALL
-  as_echo_n='print -rn --'
+LANGUAGE=C
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+export LANGUAGE
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
+# We cannot yet rely on "unset" to work, but we need these variables
-else
+# to be unset--not just set to an empty or harmless value--now, to
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+# also avoids known problems related to "unset" and subshell syntax
-    as_echo_n='/usr/ucb/echo -n'
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
-  else
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+do eval test \${$as_var+y} \
-    as_echo_n_body='eval
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-      arg=$1;
+done
-      case $arg in #(
-      *"$as_nl"*)
+# Ensure that fds 0, 1, and 2 are open.
-	expr "X$arg" : "X\\(.*\\)$as_nl";
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
-      esac;
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -79,13 +82,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 fi
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -94,8 +90,12 @@ case $0 in #((
 for as_dir in $PATH
 do
  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
  done
 IFS=$as_save_IFS
@@ -107,30 +107,10 @@ if test "x$as_myself" = x; then
  as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
 fi
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 # Use a proper internal environment variable to ensure we don't fall
  # into an infinite loop, continuously re-executing ourselves.
@@ -152,20 +132,22 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
-as_fn_exit 255
+exit 255
  fi
  # We don't want this to propagate to other subprocesses.
          { _as_can_reexec=; unset _as_can_reexec;}
 if test "x$CONFIG_SHELL" = x; then
-  as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+  as_bourne_compatible="as_nop=:
+if test \${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '\${1+\"\$@\"}'='\"\$@\"'
  setopt NO_GLOB_SUBST
-else
+else \$as_nop
  case \`(set -o) 2>/dev/null\` in #(
  *posix*) :
    set -o posix ;; #(
@@ -185,41 +167,52 @@ as_fn_success || { exitcode=1; echo as_fn_success failed.; }
 as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
 as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
 as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
-if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+if ( set x; as_fn_ret_success y && test x = \"\$1\" )
+then :
-else
+else \$as_nop
  exitcode=1; echo positional parameters were not saved.
 fi
 test x\$exitcode = x0 || exit 1
+blah=\$(echo \$(echo blah))
+test x\"\$blah\" = xblah || exit 1
 test -x / || exit 1"
  as_suggested="  as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
  as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
  eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
  test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1"
-  if (eval "$as_required") 2>/dev/null; then :
+  if (eval "$as_required") 2>/dev/null
+then :
  as_have_required=yes
-else
+else $as_nop
  as_have_required=no
 fi
-  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+  if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null
+then :
-else
+else $as_nop
  as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 as_found=false
 for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
 do
  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
  as_found=:
  case $as_dir in #(
 	 /*)
 	   for as_base in sh bash ksh sh5; do
 	     # Try only shells that exist, to save several forks.
-	     as_shell=$as_dir/$as_base
+	     as_shell=$as_dir$as_base
 	     if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
-		    { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		    as_run=a "$as_shell" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
  CONFIG_SHELL=$as_shell as_have_required=yes
-		   if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+		   if as_run=a "$as_shell" -c "$as_bourne_compatible""$as_suggested" 2>/dev/null
+then :
  break 2
 fi
 fi
@@ -227,14 +220,21 @@ fi
       esac
  as_found=false
 done
-$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
-	      { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
-  CONFIG_SHELL=$SHELL as_have_required=yes
-fi; }
 IFS=$as_save_IFS
+if $as_found
+then :
+else $as_nop
+  if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+	      as_run=a "$SHELL" -c "$as_bourne_compatible""$as_required" 2>/dev/null
+then :
+  CONFIG_SHELL=$SHELL as_have_required=yes
+fi
+fi
-      if test "x$CONFIG_SHELL" != x; then :
+      if test "x$CONFIG_SHELL" != x
+then :
  export CONFIG_SHELL
             # We cannot yet assume a decent shell, so we have to provide a
 # neutralization value for shells without unset; and this also
@@ -252,18 +252,19 @@ esac
 exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
 # Admittedly, this is quite paranoid, since all the known shells bail
 # out after a failed `exec'.
-$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+printf "%s\n" "$0: could not re-execute with $CONFIG_SHELL" >&2
 exit 255
 fi
-    if test x$as_have_required = xno; then :
+    if test x$as_have_required = xno
-  $as_echo "$0: This script requires a shell more modern than all"
+then :
-  $as_echo "$0: the shells that I found on your system."
+  printf "%s\n" "$0: This script requires a shell more modern than all"
-  if test x${ZSH_VERSION+set} = xset ; then
+  printf "%s\n" "$0: the shells that I found on your system."
-    $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+  if test ${ZSH_VERSION+y} ; then
-    $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+    printf "%s\n" "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+    printf "%s\n" "$0: be upgraded to zsh 4.3.4 or later."
  else
-    $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+    printf "%s\n" "$0: Please tell bug-autoconf@gnu.org about your system,
 $0: including any error possibly output before this
 $0: message. Then install a modern shell, or manually run
 $0: the script under such a shell if you do have one."
@@ -290,6 +291,7 @@ as_fn_unset ()
 }
 as_unset=as_fn_unset
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -307,6 +309,14 @@ as_fn_exit ()
  as_fn_set_status $1
  exit $1
 } # as_fn_exit
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 # as_fn_mkdir_p
 # -------------
@@ -321,7 +331,7 @@ as_fn_mkdir_p ()
    as_dirs=
    while :; do
      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
@@ -330,7 +340,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -369,12 +379,13 @@ as_fn_executable_p ()
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
-else
+else $as_nop
  as_fn_append ()
  {
    eval $1=\$$1\$2
@@ -386,18 +397,27 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
-else
+else $as_nop
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
  }
 fi # as_fn_arith
+# as_fn_nop
+# ---------
+# Do nothing but, unlike ":", preserve the value of $?.
+as_fn_nop ()
+{
+  return $?
+}
+as_nop=as_fn_nop
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
 # ----------------------------------------
@@ -409,9 +429,9 @@ as_fn_error ()
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
  as_fn_exit $as_status
 } # as_fn_error
@@ -438,7 +458,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -482,7 +502,7 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
      s/-\n.*//
    ' >$as_me.lineno &&
  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+    { printf "%s\n" "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
  # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
  # already done that, so ensure we don't try to do so again and fall
@@ -496,6 +516,10 @@ as_cr_alnum=$as_cr_Letters$as_cr_digits
  exit
 }
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -509,6 +533,13 @@ case `echo -n x` in #(((((
  ECHO_N='-n';;
 esac
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
@@ -700,8 +731,6 @@ do
  *)    ac_optarg=yes ;;
  esac
-  # Accept the important Cygnus configure options, so we can diagnose typos.
  case $ac_dashdash$ac_option in
  --)
    ac_dashdash=yes ;;
@@ -742,9 +771,9 @@ do
    ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
 "enable_$ac_useropt"
@@ -768,9 +797,9 @@ do
    ac_useropt=`expr "x$ac_option" : 'x-*enable-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid feature name: $ac_useropt"
+      as_fn_error $? "invalid feature name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
 "enable_$ac_useropt"
@@ -981,9 +1010,9 @@ do
    ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
 "with_$ac_useropt"
@@ -997,9 +1026,9 @@ do
    ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
    # Reject names that are not valid shell variable names.
    expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
-      as_fn_error $? "invalid package name: $ac_useropt"
+      as_fn_error $? "invalid package name: \`$ac_useropt'"
    ac_useropt_orig=$ac_useropt
-    ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+    ac_useropt=`printf "%s\n" "$ac_useropt" | sed 's/[-+.]/_/g'`
    case $ac_user_opts in
      *"
 "with_$ac_useropt"
@@ -1043,9 +1072,9 @@ Try \`$0 --help' for more information"
  *)
    # FIXME: should be removed in autoconf 3.0.
-    $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+    printf "%s\n" "$as_me: WARNING: you should use --build, --host, --target" >&2
    expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
-      $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+      printf "%s\n" "$as_me: WARNING: invalid host type: $ac_option" >&2
    : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
    ;;
@@ -1061,7 +1090,7 @@ if test -n "$ac_unrecognized_opts"; then
  case $enable_option_checking in
    no) ;;
    fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
-    *)     $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+    *)     printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
  esac
 fi
@@ -1125,7 +1154,7 @@ $as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_myself" : 'X\(//\)[^/]' \| \
 	 X"$as_myself" : 'X\(//\)$' \| \
 	 X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_myself" |
+printf "%s\n" X"$as_myself" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -1264,9 +1293,9 @@ if test "$ac_init_help" = "recursive"; then
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -1294,7 +1323,8 @@ esac
 ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
    cd "$ac_dir" || { ac_status=$?; continue; }
-    # Check for guested configure.
+    # Check for configure.gnu first; this name is used for a wrapper for
+    # Metaconfig's "Configure" on case-insensitive file systems.
    if test -f "$ac_srcdir/configure.gnu"; then
      echo &&
      $SHELL "$ac_srcdir/configure.gnu" --help=recursive
@@ -1302,7 +1332,7 @@ ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
      echo &&
      $SHELL "$ac_srcdir/configure" --help=recursive
    else
-      $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+      printf "%s\n" "$as_me: WARNING: no configuration information is in $ac_dir" >&2
    fi || ac_status=$?
    cd "$ac_pwd" || { ac_status=$?; break; }
  done
@@ -1312,9 +1342,9 @@ test -n "$ac_init_help" && exit $ac_status
 if $ac_init_version; then
  cat <<\_ACEOF
 lightgbm configure 3.3.3.99
-generated by GNU Autoconf 2.69
+generated by GNU Autoconf 2.71
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This configure script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it.
 _ACEOF
@@ -1324,14 +1354,34 @@ fi
 ## ------------------------ ##
 ## Autoconf initialization. ##
 ## ------------------------ ##
+ac_configure_args_raw=
+for ac_arg
+do
+  case $ac_arg in
+  *\'*)
+    ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+  esac
+  as_fn_append ac_configure_args_raw " '$ac_arg'"
+done
+case $ac_configure_args_raw in
+  *$as_nl*)
+    ac_safe_unquote= ;;
+  *)
+    ac_unsafe_z='|&;<>()$`\\"*?[ ''	' # This string ends in space, tab.
+    ac_unsafe_a="$ac_unsafe_z#~"
+    ac_safe_unquote="s/ '\\([^$ac_unsafe_a][^$ac_unsafe_z]*\\)'/ \\1/g"
+    ac_configure_args_raw=`      printf "%s\n" "$ac_configure_args_raw" | sed "$ac_safe_unquote"`;;
+esac
 cat >config.log <<_ACEOF
 This file contains any messages produced by compilers while
 running configure, to aid debugging if configure makes a mistake.
 It was created by lightgbm $as_me 3.3.3.99, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
-  $ $0 $@
+  $ $0$ac_configure_args_raw
 _ACEOF
 exec 5>>config.log
@@ -1364,8 +1414,12 @@ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
 for as_dir in $PATH
 do
  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
-    $as_echo "PATH: $as_dir"
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    printf "%s\n" "PATH: $as_dir"
  done
 IFS=$as_save_IFS
@@ -1400,7 +1454,7 @@ do
    | -silent | --silent | --silen | --sile | --sil)
      continue ;;
    *\'*)
-      ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+      ac_arg=`printf "%s\n" "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
    esac
    case $ac_pass in
    1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
@@ -1435,11 +1489,13 @@ done
 # WARNING: Use '\'' to represent an apostrophe within the trap.
 # WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
 trap 'exit_status=$?
+  # Sanitize IFS.
+  IFS=" ""	$as_nl"
  # Save into config.log some information that might help in debugging.
  {
    echo
-    $as_echo "## ---------------- ##
+    printf "%s\n" "## ---------------- ##
 ## Cache variables. ##
 ## ---------------- ##"
    echo
@@ -1450,8 +1506,8 @@ trap 'exit_status=$?
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
@@ -1475,7 +1531,7 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
 )
    echo
-    $as_echo "## ----------------- ##
+    printf "%s\n" "## ----------------- ##
 ## Output variables. ##
 ## ----------------- ##"
    echo
@@ -1483,14 +1539,14 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
    do
      eval ac_val=\$$ac_var
      case $ac_val in
-      *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+      *\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
      esac
-      $as_echo "$ac_var='\''$ac_val'\''"
+      printf "%s\n" "$ac_var='\''$ac_val'\''"
    done | sort
    echo
    if test -n "$ac_subst_files"; then
-      $as_echo "## ------------------- ##
+      printf "%s\n" "## ------------------- ##
 ## File substitutions. ##
 ## ------------------- ##"
      echo
@@ -1498,15 +1554,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      do
 	eval ac_val=\$$ac_var
 	case $ac_val in
-	*\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+	*\'\''*) ac_val=`printf "%s\n" "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
 	esac
-	$as_echo "$ac_var='\''$ac_val'\''"
+	printf "%s\n" "$ac_var='\''$ac_val'\''"
      done | sort
      echo
    fi
    if test -s confdefs.h; then
-      $as_echo "## ----------- ##
+      printf "%s\n" "## ----------- ##
 ## confdefs.h. ##
 ## ----------- ##"
      echo
@@ -1514,8 +1570,8 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      echo
    fi
    test "$ac_signal" != 0 &&
-      $as_echo "$as_me: caught signal $ac_signal"
+      printf "%s\n" "$as_me: caught signal $ac_signal"
-    $as_echo "$as_me: exit $exit_status"
+    printf "%s\n" "$as_me: exit $exit_status"
  } >&5
  rm -f core *.core core.conftest.* &&
    rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
@@ -1529,63 +1585,48 @@ ac_signal=0
 # confdefs.h avoids OS command line length limits that DEFS can exceed.
 rm -f -r conftest* confdefs.h
-$as_echo "/* confdefs.h */" > confdefs.h
+printf "%s\n" "/* confdefs.h */" > confdefs.h
 # Predefined preprocessor variables.
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_NAME \"$PACKAGE_NAME\"" >>confdefs.h
-#define PACKAGE_NAME "$PACKAGE_NAME"
-_ACEOF
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_TARNAME \"$PACKAGE_TARNAME\"" >>confdefs.h
-#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
-_ACEOF
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_VERSION \"$PACKAGE_VERSION\"" >>confdefs.h
-#define PACKAGE_VERSION "$PACKAGE_VERSION"
-_ACEOF
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_STRING \"$PACKAGE_STRING\"" >>confdefs.h
-#define PACKAGE_STRING "$PACKAGE_STRING"
-_ACEOF
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_BUGREPORT \"$PACKAGE_BUGREPORT\"" >>confdefs.h
-#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
-_ACEOF
-cat >>confdefs.h <<_ACEOF
+printf "%s\n" "#define PACKAGE_URL \"$PACKAGE_URL\"" >>confdefs.h
-#define PACKAGE_URL "$PACKAGE_URL"
-_ACEOF
 # Let the site file select an alternate cache file if it wants to.
 # Prefer an explicitly selected file to automatically selected ones.
-ac_site_file1=NONE
-ac_site_file2=NONE
 if test -n "$CONFIG_SITE"; then
-  # We do not want a PATH search for config.site.
+  ac_site_files="$CONFIG_SITE"
-  case $CONFIG_SITE in #((
-    -*)  ac_site_file1=./$CONFIG_SITE;;
-    */*) ac_site_file1=$CONFIG_SITE;;
-    *)   ac_site_file1=./$CONFIG_SITE;;
-  esac
 elif test "x$prefix" != xNONE; then
-  ac_site_file1=$prefix/share/config.site
+  ac_site_files="$prefix/share/config.site $prefix/etc/config.site"
-  ac_site_file2=$prefix/etc/config.site
 else
-  ac_site_file1=$ac_default_prefix/share/config.site
+  ac_site_files="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
-  ac_site_file2=$ac_default_prefix/etc/config.site
 fi
-for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+for ac_site_file in $ac_site_files
 do
-  test "x$ac_site_file" = xNONE && continue
+  case $ac_site_file in #(
-  if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+  */*) :
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+     ;; #(
-$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+  *) :
+    ac_site_file=./$ac_site_file ;;
+esac
+  if test -f "$ac_site_file" && test -r "$ac_site_file"; then
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+printf "%s\n" "$as_me: loading site script $ac_site_file" >&6;}
    sed 's/^/| /' "$ac_site_file" >&5
    . "$ac_site_file" \
-      || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+      || { { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
 as_fn_error $? "failed to load site script $ac_site_file
 See \`config.log' for more details" "$LINENO" 5; }
  fi
@@ -1595,16 +1636,16 @@ if test -r "$cache_file"; then
  # Some versions of bash will fail to source /dev/null (special files
  # actually), so we avoid doing that.  DJGPP emulates it as a regular file.
  if test /dev/null != "$cache_file" && test -f "$cache_file"; then
-    { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
-$as_echo "$as_me: loading cache $cache_file" >&6;}
+printf "%s\n" "$as_me: loading cache $cache_file" >&6;}
    case $cache_file in
      [\\/]* | ?:[\\/]* ) . "$cache_file";;
      *)                      . "./$cache_file";;
    esac
  fi
 else
-  { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
-$as_echo "$as_me: creating cache $cache_file" >&6;}
+printf "%s\n" "$as_me: creating cache $cache_file" >&6;}
  >$cache_file
 fi
@@ -1618,12 +1659,12 @@ for ac_var in $ac_precious_vars; do
  eval ac_new_val=\$ac_env_${ac_var}_value
  case $ac_old_set,$ac_new_set in
    set,)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+printf "%s\n" "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,set)
-      { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
-$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+printf "%s\n" "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
      ac_cache_corrupted=: ;;
    ,);;
    *)
@@ -1632,24 +1673,24 @@ $as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
 	ac_old_val_w=`echo x $ac_old_val`
 	ac_new_val_w=`echo x $ac_new_val`
 	if test "$ac_old_val_w" != "$ac_new_val_w"; then
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
-$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+printf "%s\n" "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
 	  ac_cache_corrupted=:
 	else
-	  { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+	  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
-$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+printf "%s\n" "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
 	  eval $ac_var=\$ac_old_val
 	fi
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   former value:  \`$ac_old_val'" >&5
-$as_echo "$as_me:   former value:  \`$ac_old_val'" >&2;}
+printf "%s\n" "$as_me:   former value:  \`$ac_old_val'" >&2;}
-	{ $as_echo "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
+	{ printf "%s\n" "$as_me:${as_lineno-$LINENO}:   current value: \`$ac_new_val'" >&5
-$as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
+printf "%s\n" "$as_me:   current value: \`$ac_new_val'" >&2;}
      fi;;
  esac
  # Pass precious variables to config.status.
  if test "$ac_new_set" = set; then
    case $ac_new_val in
-    *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_arg=$ac_var=`printf "%s\n" "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
    *) ac_arg=$ac_var=$ac_new_val ;;
    esac
    case " $ac_configure_args " in
@@ -1659,11 +1700,12 @@ $as_echo "$as_me:   current value: \`$ac_new_val'" >&2;}
  fi
 done
 if $ac_cache_corrupted; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
-$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+printf "%s\n" "$as_me: error: in \`$ac_pwd':" >&2;}
-  { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
-$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+printf "%s\n" "$as_me: error: changes in the environment can compromise the build" >&2;}
-  as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+  as_fn_error $? "run \`${MAKE-make} distclean' and/or \`rm $cache_file'
+	    and start over" "$LINENO" 5
 fi
 ## -------------------- ##
 ## Main body of script. ##
@@ -1681,10 +1723,10 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 # find compiler and flags #
 ###########################
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking location of R" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking location of R" >&5
-$as_echo_n "checking location of R... " >&6; }
+printf %s "checking location of R... " >&6; }
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${R_HOME}" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${R_HOME}" >&5
-$as_echo "${R_HOME}" >&6; }
+printf "%s\n" "${R_HOME}" >&6; }
 # set up CPP flags
 # find the compiler and compiler flags used by R.
@@ -1719,8 +1761,8 @@ LGB_CPPFLAGS="${LGB_CPPFLAGS} -DEIGEN_MPL2_ONLY -DEIGEN_DONT_PARALLELIZE"
 # MM_PREFETCH #
 ###############
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether MM_PREFETCH works" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether MM_PREFETCH works" >&5
-$as_echo_n "checking whether MM_PREFETCH works... " >&6; }
+printf %s "checking whether MM_PREFETCH works... " >&6; }
 ac_mmprefetch=no
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -1729,7 +1771,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
                #include <xmmintrin.h>
 int
-main ()
+main (void)
 {
                int a = 0;
@@ -1744,8 +1786,8 @@ main ()
 _ACEOF
 ${CXX} ${CPPFLAGS} ${CXXFLAGS} -o conftest conftest.cpp 2>/dev/null && ./conftest && ac_mmprefetch=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_mmprefetch}" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${ac_mmprefetch}" >&5
-$as_echo "${ac_mmprefetch}" >&6; }
+printf "%s\n" "${ac_mmprefetch}" >&6; }
 if test "${ac_mmprefetch}" = yes; then
    LGB_CPPFLAGS+=" -DMM_PREFETCH=1"
 fi
@@ -1754,8 +1796,8 @@ fi
 # MM_ALLOC #
 ############
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether MM_MALLOC works" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether MM_MALLOC works" >&5
-$as_echo_n "checking whether MM_MALLOC works... " >&6; }
+printf %s "checking whether MM_MALLOC works... " >&6; }
 ac_mm_malloc=no
 cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -1764,7 +1806,7 @@ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
                #include <mm_malloc.h>
 int
-main ()
+main (void)
 {
                char *a = (char*)_mm_malloc(8, 16);
@@ -1779,8 +1821,8 @@ main ()
 _ACEOF
 ${CXX} ${CPPFLAGS} ${CXXFLAGS} -o conftest conftest.cpp 2>/dev/null && ./conftest && ac_mm_malloc=yes
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_mm_malloc}" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${ac_mm_malloc}" >&5
-$as_echo "${ac_mm_malloc}" >&6; }
+printf "%s\n" "${ac_mm_malloc}" >&6; }
 if test "${ac_mm_malloc}" = yes; then
    LGB_CPPFLAGS+=" -DMM_MALLOC=1"
 fi
@@ -1810,11 +1852,11 @@ then
    HOMEBREW_LIBOMP_PREFIX=""
    if command -v brew &> /dev/null; then
        ac_brew_openmp=no
-        { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether OpenMP was installed via Homebrew" >&5
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether OpenMP was installed via Homebrew" >&5
-$as_echo_n "checking whether OpenMP was installed via Homebrew... " >&6; }
+printf %s "checking whether OpenMP was installed via Homebrew... " >&6; }
        brew --prefix libomp &>/dev/null && ac_brew_openmp=yes
-        { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_brew_openmp}" >&5
+        { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${ac_brew_openmp}" >&5
-$as_echo "${ac_brew_openmp}" >&6; }
+printf "%s\n" "${ac_brew_openmp}" >&6; }
        if test "${ac_brew_openmp}" = yes; then
            HOMEBREW_LIBOMP_PREFIX=`brew --prefix libomp`
            OPENMP_CXXFLAGS="${OPENMP_CXXFLAGS} -I${HOMEBREW_LIBOMP_PREFIX}/include"
@@ -1822,8 +1864,8 @@ $as_echo "${ac_brew_openmp}" >&6; }
        fi
    fi
    ac_pkg_openmp=no
-    { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether OpenMP will work in a package" >&5
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking whether OpenMP will work in a package" >&5
-$as_echo_n "checking whether OpenMP will work in a package... " >&6; }
+printf %s "checking whether OpenMP will work in a package... " >&6; }
    cat confdefs.h - <<_ACEOF >conftest.$ac_ext
 /* end confdefs.h.  */
@@ -1831,7 +1873,7 @@ $as_echo_n "checking whether OpenMP will work in a package... " >&6; }
                    #include <omp.h>
 int
-main ()
+main (void)
 {
                    return (omp_get_max_threads() <= 1);
@@ -1855,8 +1897,8 @@ _ACEOF
        ${CXX} ${CPPFLAGS} ${CXXFLAGS} ${LDFLAGS} ${OPENMP_CXXFLAGS} ${OPENMP_LIB} -o conftest conftest.cpp 2>/dev/null && ./conftest && ac_pkg_openmp=yes
    fi
-    { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${ac_pkg_openmp}" >&5
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: ${ac_pkg_openmp}" >&5
-$as_echo "${ac_pkg_openmp}" >&6; }
+printf "%s\n" "${ac_pkg_openmp}" >&6; }
    if test "${ac_pkg_openmp}" = no; then
        OPENMP_CXXFLAGS=''
        OPENMP_LIB=''
@@ -1904,8 +1946,8 @@ _ACEOF
    case $ac_val in #(
    *${as_nl}*)
      case $ac_var in #(
-      *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+      *_cv_*) { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
-$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+printf "%s\n" "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
      esac
      case $ac_var in #(
      _ | IFS | as_nl) ;; #(
@@ -1935,15 +1977,15 @@ $as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
     /^ac_cv_env_/b end
     t clear
     :clear
-     s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+     s/^\([^=]*\)=\(.*[{}].*\)$/test ${\1+y} || &/
     t end
     s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
     :end' >>confcache
 if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
  if test -w "$cache_file"; then
    if test "x$cache_file" != "x/dev/null"; then
-      { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
-$as_echo "$as_me: updating cache $cache_file" >&6;}
+printf "%s\n" "$as_me: updating cache $cache_file" >&6;}
      if test ! -f "$cache_file" || test -h "$cache_file"; then
 	cat confcache >"$cache_file"
      else
@@ -1957,8 +1999,8 @@ $as_echo "$as_me: updating cache $cache_file" >&6;}
      fi
    fi
  else
-    { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+    { printf "%s\n" "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
-$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+printf "%s\n" "$as_me: not updating unwritable cache $cache_file" >&6;}
  fi
 fi
 rm -f confcache
@@ -2011,7 +2053,7 @@ U=
 for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
  # 1. Remove the extension, and $U if already installed.
  ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
-  ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+  ac_i=`printf "%s\n" "$ac_i" | sed "$ac_script"`
  # 2. Prepend LIBOBJDIR.  When used with automake>=1.10 LIBOBJDIR
  #    will be set to the directory where LIBOBJS objects are built.
  as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
@@ -2027,8 +2069,8 @@ LTLIBOBJS=$ac_ltlibobjs
 ac_write_fail=0
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
-$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+printf "%s\n" "$as_me: creating $CONFIG_STATUS" >&6;}
 as_write_fail=0
 cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
 #! $SHELL
@@ -2051,14 +2093,16 @@ cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
 # Be more Bourne compatible
 DUALCASE=1; export DUALCASE # for MKS sh
-if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+as_nop=:
+if test ${ZSH_VERSION+y} && (emulate sh) >/dev/null 2>&1
+then :
  emulate sh
  NULLCMD=:
  # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
  # is contrary to our usage.  Disable this feature.
  alias -g '${1+"$@"}'='"$@"'
  setopt NO_GLOB_SUBST
-else
+else $as_nop
  case `(set -o) 2>/dev/null` in #(
  *posix*) :
    set -o posix ;; #(
@@ -2068,46 +2112,46 @@ esac
 fi
+# Reset variables that may have inherited troublesome values from
+# the environment.
+# IFS needs to be set, to space, tab, and newline, in precisely that order.
+# (If _AS_PATH_WALK were called with IFS unset, it would have the
+# side effect of setting IFS to empty, thus disabling word splitting.)
+# Quoting is to prevent editors from complaining about space-tab.
 as_nl='
 '
 export as_nl
-# Printing a long string crashes Solaris 7 /usr/bin/printf.
+IFS=" ""	$as_nl"
-as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+PS1='$ '
-as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+PS2='> '
-# Prefer a ksh shell builtin over an external printf program on Solaris,
+PS4='+ '
-# but without wasting forks for bash or zsh.
-if test -z "$BASH_VERSION$ZSH_VERSION" \
+# Ensure predictable behavior from utilities with locale-dependent output.
-    && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+LC_ALL=C
-  as_echo='print -r --'
+export LC_ALL
-  as_echo_n='print -rn --'
+LANGUAGE=C
-elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+export LANGUAGE
-  as_echo='printf %s\n'
-  as_echo_n='printf %s'
+# We cannot yet rely on "unset" to work, but we need these variables
-else
+# to be unset--not just set to an empty or harmless value--now, to
-  if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+# avoid bugs in old shells (e.g. pre-3.0 UWIN ksh).  This construct
-    as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+# also avoids known problems related to "unset" and subshell syntax
-    as_echo_n='/usr/ucb/echo -n'
+# in other old shells (e.g. bash 2.01 and pdksh 5.2.14).
-  else
+for as_var in BASH_ENV ENV MAIL MAILPATH CDPATH
-    as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+do eval test \${$as_var+y} \
-    as_echo_n_body='eval
+  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-      arg=$1;
+done
-      case $arg in #(
-      *"$as_nl"*)
+# Ensure that fds 0, 1, and 2 are open.
-	expr "X$arg" : "X\\(.*\\)$as_nl";
+if (exec 3>&0) 2>/dev/null; then :; else exec 0</dev/null; fi
-	arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+if (exec 3>&1) 2>/dev/null; then :; else exec 1>/dev/null; fi
-      esac;
+if (exec 3>&2)            ; then :; else exec 2>/dev/null; fi
-      expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
-    '
-    export as_echo_n_body
-    as_echo_n='sh -c $as_echo_n_body as_echo'
-  fi
-  export as_echo_body
-  as_echo='sh -c $as_echo_body as_echo'
-fi
 # The user is always right.
-if test "${PATH_SEPARATOR+set}" != set; then
+if ${PATH_SEPARATOR+false} :; then
  PATH_SEPARATOR=:
  (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
    (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
@@ -2116,13 +2160,6 @@ if test "${PATH_SEPARATOR+set}" != set; then
 fi
-# IFS
-# We need space, tab and new line, in precisely that order.  Quoting is
-# there to prevent editors from complaining about space-tab.
-# (If _AS_PATH_WALK were called with IFS unset, it would disable word
-# splitting by setting IFS to empty value.)
-IFS=" ""	$as_nl"
 # Find who we are.  Look in the path if we contain no directory separator.
 as_myself=
 case $0 in #((
@@ -2131,8 +2168,12 @@ case $0 in #((
 for as_dir in $PATH
 do
  IFS=$as_save_IFS
-  test -z "$as_dir" && as_dir=.
+  case $as_dir in #(((
-    test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+    '') as_dir=./ ;;
+    */) ;;
+    *) as_dir=$as_dir/ ;;
+  esac
+    test -r "$as_dir$0" && as_myself=$as_dir$0 && break
  done
 IFS=$as_save_IFS
@@ -2144,30 +2185,10 @@ if test "x$as_myself" = x; then
  as_myself=$0
 fi
 if test ! -f "$as_myself"; then
-  $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+  printf "%s\n" "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
  exit 1
 fi
-# Unset variables that we do not need and which cause bugs (e.g. in
-# pre-3.0 UWIN ksh).  But do not cause bugs in bash 2.01; the "|| exit 1"
-# suppresses any "Segmentation fault" message there.  '((' could
-# trigger a bug in pdksh 5.2.14.
-for as_var in BASH_ENV ENV MAIL MAILPATH
-do eval test x\${$as_var+set} = xset \
-  && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
-done
-PS1='$ '
-PS2='> '
-PS4='+ '
-# NLS nuisances.
-LC_ALL=C
-export LC_ALL
-LANGUAGE=C
-export LANGUAGE
-# CDPATH.
-(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
 # as_fn_error STATUS ERROR [LINENO LOG_FD]
@@ -2180,13 +2201,14 @@ as_fn_error ()
  as_status=$1; test $as_status -eq 0 && as_status=1
  if test "$4"; then
    as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
-    $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+    printf "%s\n" "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
  fi
-  $as_echo "$as_me: error: $2" >&2
+  printf "%s\n" "$as_me: error: $2" >&2
  as_fn_exit $as_status
 } # as_fn_error
 # as_fn_set_status STATUS
 # -----------------------
 # Set $? to STATUS, without forking.
@@ -2213,18 +2235,20 @@ as_fn_unset ()
  { eval $1=; unset $1;}
 }
 as_unset=as_fn_unset
 # as_fn_append VAR VALUE
 # ----------------------
 # Append the text in VALUE to the end of the definition contained in VAR. Take
 # advantage of any shell optimizations that allow amortized linear growth over
 # repeated appends, instead of the typical quadratic growth present in naive
 # implementations.
-if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null
+then :
  eval 'as_fn_append ()
  {
    eval $1+=\$2
  }'
-else
+else $as_nop
  as_fn_append ()
  {
    eval $1=\$$1\$2
@@ -2236,12 +2260,13 @@ fi # as_fn_append
 # Perform arithmetic evaluation on the ARGs, and store the result in the
 # global $as_val. Take advantage of shells that can avoid forks. The arguments
 # must be portable across $(()) and expr.
-if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null
+then :
  eval 'as_fn_arith ()
  {
    as_val=$(( $* ))
  }'
-else
+else $as_nop
  as_fn_arith ()
  {
    as_val=`expr "$@" || test $? -eq 1`
@@ -2272,7 +2297,7 @@ as_me=`$as_basename -- "$0" ||
 $as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
 	 X"$0" : 'X\(//\)$' \| \
 	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
+printf "%s\n" X/"$0" |
    sed '/^.*\/\([^/][^/]*\)\/*$/{
 	    s//\1/
 	    q
@@ -2294,6 +2319,10 @@ as_cr_Letters=$as_cr_letters$as_cr_LETTERS
 as_cr_digits='0123456789'
 as_cr_alnum=$as_cr_Letters$as_cr_digits
+# Determine whether it's possible to make 'echo' print without a newline.
+# These variables are no longer used directly by Autoconf, but are AC_SUBSTed
+# for compatibility with existing Makefiles.
 ECHO_C= ECHO_N= ECHO_T=
 case `echo -n x` in #(((((
 -n*)
@@ -2307,6 +2336,12 @@ case `echo -n x` in #(((((
  ECHO_N='-n';;
 esac
+# For backward compatibility with old third-party macros, we provide
+# the shell variables $as_echo and $as_echo_n.  New code should use
+# AS_ECHO(["message"]) and AS_ECHO_N(["message"]), respectively.
+as_echo='printf %s\n'
+as_echo_n='printf %s'
 rm -f conf$$ conf$$.exe conf$$.file
 if test -d conf$$.dir; then
  rm -f conf$$.dir/conf$$.file
@@ -2348,7 +2383,7 @@ as_fn_mkdir_p ()
    as_dirs=
    while :; do
      case $as_dir in #(
-      *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+      *\'*) as_qdir=`printf "%s\n" "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
      *) as_qdir=$as_dir;;
      esac
      as_dirs="'$as_qdir' $as_dirs"
@@ -2357,7 +2392,7 @@ $as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$as_dir" : 'X\(//\)[^/]' \| \
 	 X"$as_dir" : 'X\(//\)$' \| \
 	 X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$as_dir" |
+printf "%s\n" X"$as_dir" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -2420,7 +2455,7 @@ cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
 # values after options handling.
 ac_log="
 This file was extended by lightgbm $as_me 3.3.3.99, which was
-generated by GNU Autoconf 2.69.  Invocation command line was
+generated by GNU Autoconf 2.71.  Invocation command line was
  CONFIG_FILES    = $CONFIG_FILES
  CONFIG_HEADERS  = $CONFIG_HEADERS
@@ -2469,14 +2504,16 @@ $config_files
 Report bugs to the package provider."
 _ACEOF
+ac_cs_config=`printf "%s\n" "$ac_configure_args" | sed "$ac_safe_unquote"`
+ac_cs_config_escaped=`printf "%s\n" "$ac_cs_config" | sed "s/^ //; s/'/'\\\\\\\\''/g"`
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
-ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_config='$ac_cs_config_escaped'
 ac_cs_version="\\
 lightgbm config.status 3.3.3.99
-configured by $0, generated by GNU Autoconf 2.69,
+configured by $0, generated by GNU Autoconf 2.71,
  with options \\"\$ac_cs_config\\"
-Copyright (C) 2012 Free Software Foundation, Inc.
+Copyright (C) 2021 Free Software Foundation, Inc.
 This config.status script is free software; the Free Software Foundation
 gives unlimited permission to copy, distribute and modify it."
@@ -2513,21 +2550,21 @@ do
  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
    ac_cs_recheck=: ;;
  --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
-    $as_echo "$ac_cs_version"; exit ;;
+    printf "%s\n" "$ac_cs_version"; exit ;;
  --config | --confi | --conf | --con | --co | --c )
-    $as_echo "$ac_cs_config"; exit ;;
+    printf "%s\n" "$ac_cs_config"; exit ;;
  --debug | --debu | --deb | --de | --d | -d )
    debug=: ;;
  --file | --fil | --fi | --f )
    $ac_shift
    case $ac_optarg in
-    *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+    *\'*) ac_optarg=`printf "%s\n" "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
    '') as_fn_error $? "missing file argument" ;;
    esac
    as_fn_append CONFIG_FILES " '$ac_optarg'"
    ac_need_defaults=false;;
  --he | --h |  --help | --hel | -h )
-    $as_echo "$ac_cs_usage"; exit ;;
+    printf "%s\n" "$ac_cs_usage"; exit ;;
  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil | --si | --s)
    ac_cs_silent=: ;;
@@ -2555,7 +2592,7 @@ cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
 if \$ac_cs_recheck; then
  set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
  shift
-  \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+  \printf "%s\n" "running CONFIG_SHELL=$SHELL \$*" >&6
  CONFIG_SHELL='$SHELL'
  export CONFIG_SHELL
  exec "\$@"
@@ -2569,7 +2606,7 @@ exec 5>>config.log
  sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
 ## Running $as_me. ##
 _ASBOX
-  $as_echo "$ac_log"
+  printf "%s\n" "$ac_log"
 } >&5
 _ACEOF
@@ -2594,7 +2631,7 @@ done
 # We use the long form for the default assignment because of an extremely
 # bizarre bug on SunOS 4.1.3.
 if $ac_need_defaults; then
-  test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+  test ${CONFIG_FILES+y} || CONFIG_FILES=$config_files
 fi
 # Have a temporary directory for convenience.  Make it in the build tree
@@ -2822,7 +2859,7 @@ do
 	   esac ||
 	   as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
      esac
-      case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+      case $ac_f in *\'*) ac_f=`printf "%s\n" "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
      as_fn_append ac_file_inputs " '$ac_f'"
    done
@@ -2830,17 +2867,17 @@ do
    # use $as_me), people would be surprised to read:
    #    /* config.h.  Generated by config.status.  */
    configure_input='Generated from '`
-	  $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+	  printf "%s\n" "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
 	`' by configure.'
    if test x"$ac_file" != x-; then
      configure_input="$ac_file.  $configure_input"
-      { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+      { printf "%s\n" "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
-$as_echo "$as_me: creating $ac_file" >&6;}
+printf "%s\n" "$as_me: creating $ac_file" >&6;}
    fi
    # Neutralize special characters interpreted by sed in replacement strings.
    case $configure_input in #(
    *\&* | *\|* | *\\* )
-       ac_sed_conf_input=`$as_echo "$configure_input" |
+       ac_sed_conf_input=`printf "%s\n" "$configure_input" |
       sed 's/[\\\\&|]/\\\\&/g'`;; #(
    *) ac_sed_conf_input=$configure_input;;
    esac
@@ -2857,7 +2894,7 @@ $as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
 	 X"$ac_file" : 'X\(//\)[^/]' \| \
 	 X"$ac_file" : 'X\(//\)$' \| \
 	 X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X"$ac_file" |
+printf "%s\n" X"$ac_file" |
    sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
 	    s//\1/
 	    q
@@ -2881,9 +2918,9 @@ $as_echo X"$ac_file" |
 case "$ac_dir" in
 .) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
 *)
-  ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+  ac_dir_suffix=/`printf "%s\n" "$ac_dir" | sed 's|^\.[\\/]||'`
  # A ".." for each directory in $ac_dir_suffix.
-  ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+  ac_top_builddir_sub=`printf "%s\n" "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
  case $ac_top_builddir_sub in
  "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
  *)  ac_top_build_prefix=$ac_top_builddir_sub/ ;;
@@ -2936,8 +2973,8 @@ ac_sed_dataroot='
 case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
 *datarootdir*) ac_datarootdir_seen=yes;;
 *@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
-$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+printf "%s\n" "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
 _ACEOF
 cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
  ac_datarootdir_hack='
@@ -2979,9 +3016,9 @@ test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
  { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
  { ac_out=`sed -n '/^[	 ]*datarootdir[	 ]*:*=/p' \
      "$ac_tmp/out"`; test -z "$ac_out"; } &&
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&5
-$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+printf "%s\n" "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
 which seems to be undefined.  Please make sure it is defined" >&2;}
  rm -f "$ac_tmp/stdin"
@@ -3028,7 +3065,8 @@ if test "$no_create" != yes; then
  $ac_cs_success || as_fn_exit 1
 fi
 if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
-  { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+  { printf "%s\n" "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
-$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+printf "%s\n" "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
 fi
--- a/R-package/recreate-configure.sh
+++ b/R-package/recreate-configure.sh
 #!/bin/bash
 # recreates 'configure' from 'configure.ac'
-# this script should run on Ubuntu 20.04
+# this script should run on Ubuntu 22.04
 AUTOCONF_VERSION=$(cat R-package/AUTOCONF_UBUNTU_VERSION)
 # R packages cannot have versions like 3.0.0rc1, but