[MacPorts] #59818: openmpi doesn't compile on Mac OS X 10.14.6 and gcc

[MacPorts]

#59818: openmpi doesn't compile on Mac OS X 10.14.6 and gcc
--------------------------+---------------------
 Reporter:  oliviermarti  |      Owner:  (none)
     Type:  defect        |     Status:  new
 Priority:  Normal        |  Milestone:
Component:  ports         |    Version:  2.6.2
 Keywords:  ptrdiff_t     |       Port:  openmpi
--------------------------+---------------------
 Mac OS X 10.14.6

 XCode 12.2.1

 MacPort 2.6.2, fresh install from scratch (all previous MacPort port and
 files removed as explained
 inhttps://guide.macports.org/#installing.macports.uninstalling)


 {{{
 sudo port install gcc9 # OK
 sudo port select --set gcc mp-gcc9 # OK
 sudo port install openmpi-devel-gcc9 +fortran
 }}}


 Last command fails with

 {{{
 :info:configure configure: error: ptrdiff_t type is not available, this is
 required by C99 standard.  Cannot continue
 :info:configure Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_openmpi
 /openmpi-devel-gcc8/work/build" &&
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_openmpi
 /openmpi-devel-gcc8/work/openmpi-v4.0.x-201905080241-5d4c9b4/configure
 --prefix=/opt/local --enable-mpi-cxx FFLAGS='' F77=''
 --bindir=/opt/local/libexec/openmpi-devel-gcc8 --libdir=/opt/local/lib
 /openmpi-devel-gcc8 --sysconfdir=/opt/local/etc/openmpi-devel-gcc8
 --includedir=/opt/local/include/openmpi-devel-gcc8
 --datadir=/opt/local/share/openmpi-devel-gcc8
 --docdir=/opt/local/share/docdelete --mandir=/opt/local/share/mandelete
 --with-hwloc=/opt/local --enable-mpi-fortran
 :info:configure Exit code: 1
 }}}

 I have exactly the same defect with gcc8 and gcc7.

 Olivier

-- 
Ticket URL: <https://trac.macports.org/ticket/59818>
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