o update autogen.sh to check for autotools versions and presence before

   continuing

autogen.sh

@@ -9,6 +9,60 @@
 # To specify extra flags to aclocal (include dirs for example),
 # set ACLOCAL_FLAGS
 #
+
+DIE=0
+
+# minimum required versions of autoconf/automake:
+ACMAJOR=2
+ACMINOR=52
+
+AMMAJOR=1
+AMMINOR=4
+AMPATCH=4
+
+(autoconf --version 2>&1 | \
+ perl -n0e "(/(\d+)\.(\d+)/ && \$1>=$ACMAJOR && \$2>=$ACMINOR) || exit 1") || {
+    echo
+    echo "Error: You must have \`autoconf' version $ACMAJOR.$ACMINOR or greater"
+    echo "installed to run $0. Get the latest version from"
+    echo "ftp://ftp.gnu.org/pub/gnu/autoconf/"
+    echo
+    NO_AUTOCONF=yes
+    DIE=1
+}
+
+amtest="
+    if (/(\d+)\.(\d+)((-p|\.)(\d+))*/) { 
+    exit 1 if (\$1 < $AMMAJOR || \$2 < $AMMINOR); 
+    exit 0 if (\$2 > $AMMINOR); 
+    exit 1 if (\$5 < $AMPATCH); 
+}"
+
+(automake --version 2>&1 | perl -n0e "$amtest" ) || {
+    echo
+    echo "Error: You must have \`automake' version $AMMAJOR.$AMMINOR-p$AMPATCH or greater"
+    echo "installed to run $0. Get the latest version from"
+    echo "ftp://ftp.gnu.org/pub/gnu/automake/"
+    echo
+    NO_AUTOCONF=yes
+    DIE=1
+}
+
+
+test -n "$NO_AUTOMAKE" || (aclocal --version) < /dev/null > /dev/null 2>&1 || {
+    echo
+    echo "Error: \`aclocal' appears to be missing. The installed version of"
+    echo "\`automake' may be too old. Get the most recent version from"
+    echo "ftp://ftp.gnu.org/pub/gnu/automake/"
+    NO_ACLOCAL=yes
+    DIE=1
+}
+
+if test $DIE -eq 1; then
+    exit 1
+fi
+
+
 echo "running aclocal $ACLOCAL_FLAGS ... "
 aclocal $ACLOCAL_FLAGS
 echo "running autoheader ... "
@@ -18,11 +72,11 @@ automake --add-missing
 echo "running autoconf ... "
 autoconf
 if [ -e config.status ]; then
-  echo "removing stale config.status."
-  rm -f config.status 
+   echo "removing stale config.status."
+   rm -f config.status 
 fi
 if [ -e config.log    ]; then
-  echo "removing old config.log."
-  rm -f config.log
+   echo "removing old config.log."
+   rm -f config.log
 fi
 echo "now run ./configure to configure slurm for your environment."