This looks like you might not have run the configure script correctly before running make. Can you send your config.log? Also, is there a particular reason that you need to install MPICH from source. It’s usually easier to just grab one of the versions that installs automatically. For Mac’s the recommended way of doing this is to use Homebrew. You can find more information on the Downloads page. For most installations (unless you’re using some non-default features), this is sufficient. Thanks, Wesley On Aug 5, 2014, at 10:17 AM, Sahar Amir <[email protected]<mailto:[email protected]>> wrote: 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<http://configure.ac/>' or m4 files included by 'configure.ac<http://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._______________________________________________ discuss mailing list [email protected]<mailto:[email protected]> To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss