You can now run OMPI's top-level autogen.pl
script. This script will invoke the GNU Autoconf, Automake, and Libtool commands in the proper order and do a bunch of component discovery and housekeeping to setup to run OMPI's top-level configure
script.
Running autogen.pl
may take a few minutes, depending on your system. It's not very exciting to watch.
If you have a multi-processor system, enabling the multi-threaded behavior in Automake 1.11 (or newer) can result in autogen.pl
running faster. Do this by setting the AUTOMAKE_JOBS
environment variable to the number of processors (threads) that you want it to use before invoking autogen.pl
. For example (you can put this in your shell startup files):
# For bash/sh/zsh:
export AUTOMAKE_JOBS=4
# For csh/tcsh:
set AUTOMAKE_JOBS 4
Important
You generally need to run autogen.pl
whenever the top-level file configure.ac
changes, or any files in the config/
or <project>/config/
directories change (these directories are where a lot of "include" files for Open MPI's configure
script live).
Note
You do NOT need to re-run autogen.pl
if you modify a Makefile.am
.