NAG 7.2 does not build 5.0.2, but does 4.1.6: -pthread passed to ld

[mathomp4]

Background information

What version of Open MPI are you using? (e.g., v4.1.6, v5.0.1, git branch name and hash, etc.)

I'm testing Open MPI 5.0.2 (and 4.1.6)

Describe how Open MPI was installed (e.g., from a source/distribution tarball, from a git clone, from an operating system distribution package, etc.)

Both installed from tarfile.

Configure command is:

$ mkdir build-nag-7.2.01 && cd build-nag-7.2.01
$ ../configure --disable-wrapper-rpath --disable-wrapper-runpath \
      CC=gcc CXX=g++ FC=nagfor \
      --with-pmix=internal --with-hwloc=internal --with-libevent=internal \
      --prefix=/ford1/share/gmao_SIteam/MPI/openmpi/X.Y.Z/nag-7.2.01 |& tee configure.nag-7.2.01.log

where X.Y.Z is either 4.1.6 or 5.0.2

Please describe the system on which you are running

• Operating system/version: RHEL8
• Computer hardware: Intel(R) Xeon(R) CPU E5-2680 v4
• Network type: Ethernet (I think? Single node)

---

Details of the problem

I am trying to build Open MPI 5.0.2 with NAG Fortran 7.2.01 (with GCC 12.1 as C/C++) and all works until:

make[3]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
  CCLD     libmpi_mpifh.la
/usr/bin/ld: unrecognized option '-pthread'
/usr/bin/ld: use the --help option for usage information

if I build with V=1:

make[3]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
/bin/sh ../../../../libtool  --tag=CC   --mode=link gcc  -O3 -DNDEBUG  -finline-functions -mcx16 -version-info 80:0:40  -o libmpi_mpifh.la -rpath /ford1/share/gmao_SIteam/MPI/openmpi/5.0.2/n
ag-7.2.01/lib  ../../../../ompi/libmpi.la ../../../../ompi/mpiext/ftmpi/mpif-h/libmpiext_ftmpi_mpifh.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/libopen-pal.la pr
ofile/libmpi_mpifh_pmpi.la libmpi_mpifh_sizeof.la -lpthread -lrt -lm -lutil  /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_core.la
 /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_pthreads.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/libhwloc.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/libpmix.la
libtool: link: gcc -shared  -fPIC -DPIC  -Wl,--whole-archive ../../../../ompi/mpiext/ftmpi/mpif-h/.libs/libmpiext_ftmpi_mpifh.a profile/.libs/libmpi_mpifh_pmpi.a ./.libs/libmpi_mpifh_sizeof.a -Wl,--no-whole-archive  -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/openmpi/5.0.2/nag-7.2.01/lib -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs ../../../../ompi/.libs/libmpi.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs/libopen-pal.so -lpthread -lrt /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs/libpmix.so -lutil /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_core.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_pthreads.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs/libhwloc.so -lm -ludev -ldl  -O3 -mcx16   -pthread -Wl,-pthread -Wl,-soname -Wl,libmpi_mpifh.so.40 -o .libs/libmpi_mpifh.so.40.40.0
/usr/bin/ld: unrecognized option '-pthread'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:2937: libmpi_mpifh.la] Error 1

So, I thought, let me try Open MPI 4.1.6 and:

...
make[3]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
  GENERATE sizeof_f.f90
  FC       sizeof_f.lo
NAG Fortran Compiler Release 7.2(Shin-Urayasu) Build 7201
[NAG Fortran Compiler normal termination]
  FCLD     libmpi_mpifh_sizeof.la
  CCLD     libmpi_mpifh.la
make[3]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make[2]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
Making all in mpi/fortran/use-mpi-tkr
make[2]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/use-mpi-tkr'
  GENERATE mpi-tkr-sizeof.h
  GENERATE mpi-tkr-sizeof.f90
  FC       mpi_aint_add_f90.lo
  FC       mpi_aint_diff_f90.lo
  FC       mpi_comm_spawn_multiple_f90.lo
...

It builds successfully.

I looked around here and I did see #4032 which is old, but, well, NAG is there, pthread is there... Maybe some old fix for NAG and Open MPI 2 got into 3, stayed around for 4, but got lost with 5?

NOTE: I was going to try and maybe see if I could use our new NAG setup to help with #9795, but that is a configure time fail so...

[mathomp4]

Oh, and I can say I've built Open MPI 5.0.2 with NAG 7.2 (and Apple Clang) on my macOS laptop, so I don't think is nagfor per se. Maybe something Clang is happy with but GCC isn't? 🤷🏼

[bosilca]

gcc -dumpspecs | grep pthread and look for the lines starting with pthread. On my OSX with gcc (12.3.0 installed via macports) I see that -pthread will be translated at compile time into -D_REENTRANT

[mathomp4]

@bosilca Well, on my mac, I build Open MPI for NAG with clang as the C compiler, not GCC:

❯ clang -dumpspecs | grep pthread
clang: error: unsupported option '-dumpspecs'
clang: error: no input files

But, on the RHEL 8 machine I see:

@$ gcc -dumpspecs | grep pthread
%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}
...

Of course, the error seems to say -pthread is not a flag ld knows (maybe via -Wl,-pthread from my verbose make) and:

@$ ld -pthread
ld: unrecognized option '-pthread'
ld: use the --help option for usage information

The verbose make says:

-ludev -ldl  -O3 -mcx16   -pthread -Wl,-pthread -Wl,-soname -Wl,libmpi_mpifh.so.40 -o .libs/libmpi_mpifh.so.40.40.0

It's like configure has decided to pass -pthread to ld but that's not a flag ld knows?

[ggouaillardet]

When nagfor is used, -pthread (that can be pulled from a .la file) is replaced with -Wl,-pthread via a patch we apply to config/ltmain.sh.

In your case, gcc is passed both -pthread and -Wl,-pthread which means ld will be passed the -pthread flag.

I do not quite see the connection between these ...

[ggouaillardet]

since you built 4.1.6, can you please post the output of

cd ompi/mpi/fortran/mpif-h
rm libmpi_mpifh.la
make V=1

[mathomp4]

@ggouaillardet Here is the make output for Open MPI 4.1.6:

Making all in profile
make[1]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h/profile'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h/profile'
make[1]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
/bin/sh ../../../../libtool  --tag=CC   --mode=link gcc  -O3 -DNDEBUG -finline-functions -fno-strict-aliasing -mcx16 -pthread -version-info 70:0:30  -o libmpi_mpifh.la -rpath /ford1/share/gmao_SIteam/MPI/openmpi/4.1.6/nag-7.2.01/lib  ../../../../ompi/libmpi.la ../../../../ompi/mpiext/pcollreq/mpif-h/libmpiext_pcollreq_mpifh.la /ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/opal/libopen-pal.la profile/libmpi_mpifh_pmpi.la libmpi_mpifh_sizeof.la -lrt -lm -lutil  -lz 
libtool: link: rm -fr  .libs/libmpi_mpifh.la .libs/libmpi_mpifh.lai .libs/libmpi_mpifh.so .libs/libmpi_mpifh.so.40 .libs/libmpi_mpifh.so.40.30.0 .libs/libmpi_mpifh.so.40.30.0T
libtool: link: gcc -shared  -fPIC -DPIC  -Wl,--whole-archive ../../../../ompi/mpiext/pcollreq/mpif-h/.libs/libmpiext_pcollreq_mpifh.a profile/.libs/libmpi_mpifh_pmpi.a ./.libs/libmpi_mpifh_sizeof.a -Wl,--no-whole-archive  -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/orte/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/opal/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/openmpi/4.1.6/nag-7.2.01/lib -L/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/orte/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/opal/.libs ../../../../ompi/.libs/libmpi.so /ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/orte/.libs/libopen-rte.so /ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/opal/.libs/libopen-pal.so -ldl -ludev -lpciaccess -lrt -lm -lutil -lz  -O3 -mcx16 -pthread   -pthread -Wl,-soname -Wl,libmpi_mpifh.so.40 -o .libs/libmpi_mpifh.so.40.30.0
libtool: link: (cd ".libs" && rm -f "libmpi_mpifh.so.40" && ln -s "libmpi_mpifh.so.40.30.0" "libmpi_mpifh.so.40")
libtool: link: (cd ".libs" && rm -f "libmpi_mpifh.so" && ln -s "libmpi_mpifh.so.40.30.0" "libmpi_mpifh.so")
libtool: link: ( cd ".libs" && rm -f "libmpi_mpifh.la" && ln -s "../libmpi_mpifh.la" "libmpi_mpifh.la" )
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-4.1.6/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'

and here is the same for 5.0.2:

Making all in profile
make[1]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h/profile'
make[1]: Nothing to be done for 'all'.
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h/profile'
make[1]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
/bin/sh ../../../../libtool  --tag=CC   --mode=link gcc  -O3 -DNDEBUG  -finline-functions -mcx16 -version-info 80:0:40  -o libmpi_mpifh.la -rpath /ford1/share/gmao_SIteam/MPI/openmpi/5.0.2/nag-7.2.01/lib  ../../../../ompi/libmpi.la ../../../../ompi/mpiext/ftmpi/mpif-h/libmpiext_ftmpi_mpifh.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/libopen-pal.la profile/libmpi_mpifh_pmpi.la libmpi_mpifh_sizeof.la -lpthread -lrt -lm -lutil  /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_core.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_pthreads.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/libhwloc.la /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/libpmix.la
libtool: link: gcc -shared  -fPIC -DPIC  -Wl,--whole-archive ../../../../ompi/mpiext/ftmpi/mpif-h/.libs/libmpiext_ftmpi_mpifh.a profile/.libs/libmpi_mpifh_pmpi.a ./.libs/libmpi_mpifh_sizeof.a -Wl,--no-whole-archive  -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/openmpi/5.0.2/nag-7.2.01/lib -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs -L/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs ../../../../ompi/.libs/libmpi.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/opal/.libs/libopen-pal.so -lpthread -lrt /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/openpmix/src/.libs/libpmix.so -lutil /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_core.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_pthreads.so /ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs/libhwloc.so -lm -ludev -ldl  -O3 -mcx16   -pthread -Wl,-pthread -Wl,-soname -Wl,libmpi_mpifh.so.40 -o .libs/libmpi_mpifh.so.40.40.0
/usr/bin/ld: unrecognized option '-pthread'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
make[1]: *** [Makefile:2937: libmpi_mpifh.la] Error 1
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/openmpi-5.0.2/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make: *** [Makefile:3435: all-recursive] Error 1

Doing a compare I see for 4.1.6:

-O3 -mcx16 -pthread   -pthread -Wl,-soname -Wl,libmpi_mpifh.so.40

and for 5.0.2:

-O3 -mcx16   -pthread -Wl,-pthread -Wl,-soname -Wl,libmpi_mpifh.so.40

So a new -Wl, appeared (along with a lot of extra stuff of course).

[ggouaillardet]

Thanks @mathomp4

would you mind giving a try with this 4.1.6 tarball?
https://github.com/ggouaillardet/ompi/releases/download/4.1.6/openmpi-4.1.6.tar.bz2

I regenerated a 4.1.6 tarball with the same autotools used by the v5 branch (they are slightly more recent that the autotools used in the v4.1 branch.

[mathomp4]

@ggouaillardet Well, I'm not sure if it's a good thing or bad thing, but I tried your tarball and it built fine with NAG 7.2.01 on the same system.

[ggouaillardet]

I concur, thanks for the test!

[ggouaillardet]

I think I am on to something, but I do not quite see a good fix for that...

First the issue can be reproduced by

configure FC=nagfor && make
where nagfor can be a symbolic link to a working Fortran compiler (e.g. `gfortran)

with v4.1, from ompi/mpi/fortran/mpif-h/profile/Makefile:

LIBS = -lrt -lm -lutil  -lz  -lhwloc  -levent_core -levent_pthreads

but from v5.x, from `ompi/mpi/fortran/mpif-h/profile/Makefile:

LIBS = -lpthread -lrt -lm -lutil -levent_core -levent_pthreads /home/users/u0001043/build/openmpi-5.0.2-nagfor/3rd-party/hwloc-2.7.1/hwloc/libhwloc.la /home/users/u0001043/build/openmpi-5.0.2-nagfor/3rd-party/openpmix/src/libpmix.la

the major difference is v5 explicitly links with libpmix.la.
Long story short, libpmix.la depends on libhwloc.la and -Wl,-pthread gets pulled into the generated libraries, that will cause some issue later.

libpmix.la nor libhwloc.la are not needed here, so not using them might do the trick.

@jsquyres @bwbarrett any ideas on how to best move forward?

[mathomp4]

This might be the first ever NAG bug I've had that doesn't require purchasing NAG! 😄

Thanks for working on this, @ggouaillardet

[ggouaillardet]

@mathomp4 can you please give this commit a try?
ggouaillardet@8d331be

you will need to apply it on a v5 source tree and they run autogen.pl (or autogen.pl --force if applying on an official tarball)

Or you might simply download this already bootstrapped tarball at https://github.com/ggouaillardet/ompi/releases/download/nag_pmix/openmpi-gitclone.tar.bz2 and simply run configure ... && make

[mathomp4]

@ggouaillardet I grabbed the tarball but:

...
NAG Fortran Compiler Release 7.2(Shin-Urayasu) Build 7201
[NAG Fortran Compiler normal termination]
  FCLD     libmpi_mpifh_sizeof.la
  CCLD     libmpi_mpifh.la
/usr/bin/ld: unrecognized option '-pthread'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:2938: libmpi_mpifh.la] Error 1
make[3]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make[2]: *** [Makefile:3436: all-recursive] Error 1
make[2]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make[1]: *** [Makefile:2801: all-recursive] Error 1
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi'
make: *** [Makefile:1534: all-recursive] Error 1

Should I try the source-and-autogen instead?

[ggouaillardet]

I am puzzled since I could pass this with my nagfor symlink...

could you please make V=1 and share the output after CCLD libmpi_mpifh.la?

[mathomp4]

Here is what I see:

make[3]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h/profile'
make[3]: Entering directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
/bin/sh ../../../../libtool  --tag=CC   --mode=link gcc  -O3 -DNDEBUG  -finline-functions -mcx16 -version-info 80:0:40  -o libmpi_mpifh.la -rpath /ford1/share/gmao_SIteam/MPI/openmpi/5.0.2-gilles/nag-7.2.01/lib  ../../../../ompi/libmpi.la ../../../../ompi/mpiext/ftmpi/mpif-h/libmpiext_ftmpi_mpifh.la /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/opal/libopen-pal.la profile/libmpi_mpifh_pmpi.la libmpi_mpifh_sizeof.la -lpthread -lrt -lm -lutil  /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_core.la /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/libevent_pthreads.la /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/libhwloc.la
libtool: link: gcc -shared  -fPIC -DPIC  -Wl,--whole-archive ../../../../ompi/mpiext/ftmpi/mpif-h/.libs/libmpiext_ftmpi_mpifh.a profile/.libs/libmpi_mpifh_pmpi.a ./.libs/libmpi_mpifh_sizeof.a -Wl,--no-whole-archive  -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/opal/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs -Wl,-rpath -Wl,/ford1/share/gmao_SIteam/MPI/openmpi/5.0.2-gilles/nag-7.2.01/lib ../../../../ompi/.libs/libmpi.so /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/opal/.libs/libopen-pal.so -ludev -ldl -lpthread -lrt -lm -lutil /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_core.so /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/libevent-2.1.12-stable/.libs/libevent_pthreads.so /ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/3rd-party/hwloc-2.7.1/hwloc/.libs/libhwloc.so  -O3 -mcx16   -pthread -Wl,-pthread -Wl,-soname -Wl,libmpi_mpifh.so.40 -o .libs/libmpi_mpifh.so.40.40.0
/usr/bin/ld: unrecognized option '-pthread'
/usr/bin/ld: use the --help option for usage information
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:2938: libmpi_mpifh.la] Error 1
make[3]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make[2]: *** [Makefile:3436: all-recursive] Error 1
make[2]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi/mpi/fortran/mpif-h'
make[1]: *** [Makefile:2801: all-recursive] Error 1
make[1]: Leaving directory '/ford1/share/gmao_SIteam/MPI/src/FromGilles/openmpi-gitclone/build-nag-7.2.01/ompi'
make: *** [Makefile:1534: all-recursive] Error 1
mathomp4@gs6101-bucy .../FromGilles/openmpi-gitclone/build-nag-7.2.01