All, In attempting to build MPICH 3.1.4 or 3.2 in the Windows 10 Subsystem for Linux, which provides a full Ubuntu bash shell, I receive the following error message after configuring: mpich-3.2/confdb/missing: line 81: aclocal-1.15: command not found WARNING: 'aclocal-1.15' 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 <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/autoconf>> <http://www.gnu.org/software/m4/ <http://www.gnu.org/software/m4/>> <http://www.perl.org/ <http://www.perl.org/>> make: *** [/home/rouson/Desktop-shortcut/opencoarrays/prerequisites/downloads/mpich-3.2/aclocal.m4] Error 127 Prior to configuring, I installed aclocal installed via “sudo apt-get install automake,” which provided aclocal-1.14. I attempted unsuccessfully to build aclocal-1.15, but the discussion at the following URL suggests that the problem might relate to time stamps on file MPICH tar ball: http://stackoverflow.com/questions/18769770/user-of-autotools-generated-tarb... <http://stackoverflow.com/questions/18769770/user-of-autotools-generated-tarball-gets-error-message-aclocal-1-13-command-no> I tried several of the steps suggested at the above link, but each leads to the following error message during the make step: $ make ( cd ./src/binding/fortran/mpif_h && ./buildiface ) Replacing mpif.h.in <http://mpif.h.in/> ( cd ./src/binding/fortran/use_mpi && ./buildiface ) Replacing mpi_base.f90.in <http://mpi_base.f90.in/> Replacing mpi_constants.f90.in <http://mpi_constants.f90.in/> Replacing mpi_t1.f90 ( cd . && rm -f .err unusederr.txt ; rm -rf .tmp ) ( cd . && \ ./maint/extracterrmsgs -careful=unusederr.txt \ -skip=src/util/multichannel/mpi.c \ `cat maint/errmsgdirs` > .tmp 2>.err ) ( cd . && if test -s .err ; then rm -f .tmp ; cat .err ; exit 1 ; fi ) Warning: attempt to redefine **fail. Duplicate ignored. make: *** [src/mpi/errhan/defmsg.h] Error 1 Can anyone advise me about how to resolve this problem? Information on the Windows 10 Ubuntu distribution is here: http://www.howtogeek.com/249966/how-to-install-and-use-the-linux-bash-shell-... My goa is to support users of OpenCoarrays (https://github.com/sourceryinstitute/opencoarrays), which uses MPICH to build and execute coarray Fortran codes with the GNU Fortran compiler (gfortran). Best Regards, ________________________________ Damian Rouson, Ph.D., P.E. President, Sourcery Institute http://www.sourceryinstitute.org +1-510-600-2992 (mobile) _______________________________________________ discuss mailing list [email protected] To manage subscription options or unsubscribe: https://lists.mpich.org/mailman/listinfo/discuss