Github action: pnetcdf master now requires newer autotools

Author: wkliao

.github/workflows/pnetcdf_c_master.yml

@@ -23,6 +23,10 @@ jobs:
       MPICH_DIR: ${{ github.workspace }}/mpich-install
       PNETCDF_VERSION: repo
       PNETCDF_DIR: ${{ github.workspace }}/PnetCDF-install
+      AUTOCONF_VERSION: 2.71
+      AUTOMAKE_VERSION: 1.17
+      LIBTOOL_VERSION: 2.5.4
+      M4_VERSION: 1.4.19
 
     strategy:
       matrix:
@@ -41,6 +45,43 @@ jobs:
         sudo apt-get update
         sudo apt-get install automake autoconf libtool libtool-bin m4
 
+    - name: Build GNU autotools
+      run: |
+        export PATH="${GITHUB_WORKSPACE}/AUTOTOOLS/bin:${PATH}"
+        export LD_LIBRARY_PATH="${GITHUB_WORKSPACE}/AUTOTOOLS/lib:${LD_LIBRARY_PATH}"
+        cd ${GITHUB_WORKSPACE}
+        wget -q https://ftp.gnu.org/gnu/m4/m4-${M4_VERSION}.tar.gz
+        gzip -dc m4-${M4_VERSION}.tar.gz | tar -xf -
+        cd m4-${M4_VERSION}
+        ./configure --prefix=${GITHUB_WORKSPACE}/AUTOTOOLS \
+                    --silent
+        make -s -j 8 install > qout 2>&1
+        make -s -j 8 distclean >> qout 2>&1
+        cd ${GITHUB_WORKSPACE}
+        wget -q https://ftp.gnu.org/gnu/autoconf/autoconf-${AUTOCONF_VERSION}.tar.gz
+        gzip -dc autoconf-${AUTOCONF_VERSION}.tar.gz | tar -xf -
+        cd autoconf-${AUTOCONF_VERSION}
+        ./configure --prefix=${GITHUB_WORKSPACE}/AUTOTOOLS \
+                    --silent
+        make -s -j 8 install > qout 2>&1
+        make -s -j 8 distclean >> qout 2>&1
+        cd ${GITHUB_WORKSPACE}
+        wget -q https://ftp.gnu.org/gnu/automake/automake-${AUTOMAKE_VERSION}.tar.gz
+        gzip -dc automake-${AUTOMAKE_VERSION}.tar.gz | tar -xf -
+        cd automake-${AUTOMAKE_VERSION}
+        ./configure --prefix=${GITHUB_WORKSPACE}/AUTOTOOLS \
+                    --silent
+        make -s -j 8 install > qout 2>&1
+        make -s -j 8 distclean >> qout 2>&1
+        cd ${GITHUB_WORKSPACE}
+        wget -q https://ftp.gnu.org/gnu/libtool/libtool-${LIBTOOL_VERSION}.tar.gz
+        gzip -dc libtool-${LIBTOOL_VERSION}.tar.gz | tar -xf -
+        cd libtool-${LIBTOOL_VERSION}
+        ./configure --prefix=${GITHUB_WORKSPACE}/AUTOTOOLS \
+                    --silent
+        make -s -j 8 install > qout 2>&1
+        make -s -j 8 distclean >> qout 2>&1
+
     - name: Build MPICH
       run: |
         echo "Install MPICH ${MPICH_VERSION} in $MPICH_DIR"
@@ -63,6 +104,12 @@ jobs:
       run: |
         echo "Build PnetCDF-C from its master branch"
         cd ${GITHUB_WORKSPACE}
+        export PATH="${GITHUB_WORKSPACE}/AUTOTOOLS/bin:${PATH}"
+        export LD_LIBRARY_PATH="${GITHUB_WORKSPACE}/AUTOTOOLS/lib:${LD_LIBRARY_PATH}"
+        m4 --version
+        autoconf --version
+        automake --version
+        libtool --version
         git clone -q https://github.com/Parallel-NetCDF/PnetCDF.git
         pushd PnetCDF
         autoreconf -i