I am trying to build the code that Ralph has put here: https://boxding@bitbucket.org/rhc/hdmon, but failed. It is a modified open MPI code. Can someone help?

[root@aesaroyp1d1c hdmon]# cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.1 (Santiago)

I have manually installed m4/autoconf/automake/libtool on my local directory and the versions match those specified in HACKING.
[root@aesaroyp1d1c lib]# pwd
[root@aesaroyp1d1c lib]# ls
autoconf-2.68  automake-1.11.1  libtool-2.2.8  m4-1.4.13

[root@aesaroyp1d1c lib]# which m4
[root@aesaroyp1d1c lib]# which autoconf
[root@aesaroyp1d1c lib]# which automake
[root@aesaroyp1d1c lib]# which libtool

When I run autogen.pl I got the following error:
6. Processing autogen.subdirs directories

=== Processing subdir: /root/workspace/hdmon/opal/mca/event/libevent2019/libevent
--- Found autogen.sh; running...
Running: ./autogen.sh
autoreconf: Entering directory `.'
autoreconf: configure.in: not using Gettext
autoreconf: running: aclocal -I .. --force -I m4
autoreconf: configure.in: tracing
autoreconf: configure.in: not using Libtool
autoreconf: running: /root/local/lib/autoconf-2.68/bin/autoconf --include=.. --force
configure.in:146: error: possibly undefined macro: AC_PROG_LIBTOOL
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
autoreconf: /root/local/lib/autoconf-2.68/bin/autoconf failed with exit status: 1
Command failed: ./autogen.sh