Good morning, I am trying to install MPICH on my mac. however when I try to apply the instruction make 2>&1 | tee m.log It gives: CDPATH="${ZSH_VERSION+.}:" && cd . && /bin/sh /Data_1/mpich-3.1.2/confdb/missing aclocal-1.14 -I confdb /Data_1/mpich-3.1.2/confdb/missing: line 81: aclocal-1.14: command not found WARNING: 'aclocal-1.14' is missing on your system. You should only need it if you modified 'acinclude.m4' or 'configure.ac' or m4 files included by 'configure.ac'. The 'aclocal' program is part of the GNU Automake package: <http://www.gnu.org/software/automake> It also requires GNU Autoconf, GNU m4 and Perl in order to run: <http://www.gnu.org/software/autoconf> <http://www.gnu.org/software/m4/> <http://www.perl.org/> make: *** [aclocal.m4] Error 127 Regards, Sahar -- ------------------------------ This message and its contents, including attachments are intended solely for the original recipient. If you are not the intended recipient or have received this message in error, please notify me immediately and delete this message from your computer system. Any unauthorized use or distribution is prohibited. Please consider the environment before printing this email.