[petsc-users] Cannot find a C preprocessor OSX

[Denis Davydov]

> On 19 Mar 2016, at 18:20, Satish Balay <balay at mcs.anl.gov> wrote:
> 
> If '-show' is not listing these -L options - where is mpicc picking them up from?

that’s how Spack does things somewhere behind the curtains.

Regards,
Denis.

> 
> Satish
> 
> On Fri, 18 Mar 2016, Denis Davydov wrote:
> 
>> Hi Satish,
>> 
>>> On 18 Mar 2016, at 19:01, Satish Balay <balay at mcs.anl.gov> wrote:
>>> 
>>> your mpicc is barfing stuff on stderr - thus confusing petsc configure.
>> 
>> yes, i noticed that. I don’t have that issue when using Homebrew’s build OpenMPI, and thus no confusion to petsc config.
>> Also those things are just warnings, why are they reported to stderr is not clear…
>> I will try suppressing it with -Qunused-arguments ...
>> 
>>> 
>>> I don't see this issue with the old openmpi I have access to..
>>> 
>>> What do you have for:
>> 
>> Looks reasonable to me:
>> 
>>> 
>>> /Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/bin/mpicc -show
>>> touch foo.c
>> /usr/bin/clang touch foo.c -I/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/include -L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/lib -lmpi
>> 
>>> /Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/bin/mpicc -c foo.c -show
>> 
>> /usr/bin/clang -c foo.c -I/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/include
>> 
>>> 
>>> I'm not sure what to suggest.. Perhaps you can use --download-mpich
>>> [or --download-openmpi] - but then I see you are building all these
>>> packages using spack - so perhaps you should check with 'spack' folk..
>> 
>> Will certainly do that. I am just toying with spack to see how good is the support for OS-X.
>> 
>> Regards,
>> Denis.
>> 
>>> 
>>> Satish
>>> 
>>> ---------
>>> 
>>> Executing: /Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/bin/mpicc -c -o /var/folders/5k/sqpp24tx3ylds4fgm13pfht00000gn/T/petsc-8RPaEA/config.setCompilers/conftest.o -I/var/folders/5k/sqpp24tx3ylds4fgm13pfht00000gn/T/petsc-8RPaEA/config.setCompilers   /var/folders/5k/sqpp24tx3ylds4fgm13pfht00000gn/T/petsc-8RPaEA/config.setCompilers/conftest.c
>>> Possible ERROR while running compiler:
>>> stderr:
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/boost-1.60.0-eo7nn3v27nxa7lxqv5tttjzikshwt56i/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/bzip2-1.0.6-leelnsg3humpngfeofkrdpgtsofrm5ya/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openmpi-1.10.2-37xieeupgsteaq6btru6wmhxfi44xqtn/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/hwloc-1.11.2-pxsmp4nhfdjc3jb7odj5lhppu7wqna5b/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/libpciaccess-0.13.4-erc6tr3ghndi5ed3gbj6wtvw6zl4vobf/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/zlib-1.2.8-cyvcqvrzlgurne424y55hxvfucvz2354/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/hdf5-1.8.16-diujq2w7ew4qviquh67b3lkcqsxtf77y/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/hypre-2.10.1-4kql32qmjpp7ict2qczkyyv6a4mbrgbl/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openblas-0.2.16-qplsxnxlbaqnz2iltdo7fdhlayvuaxel/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/metis-5.1.0-i5y5b6r5ca4f77u5tketagpkn6joxasp/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/ncurses-6.0-sabhdwxbdbbapfo6wodglfmyo6u3c3hj/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/openssl-1.0.2g-answvmhu3lodpmgulgzryygkkimmsn34/lib'
>>> clang: warning: argument unused during compilation: '-L/Users/davydden/spack/opt/spack/darwin-x86_64/clang-7.0.2-apple/parmetis-4.0.3-auubrjcwhqmqnpoqjwgwgz4bcjnxzunx/lib'
>>> 
>>> On Fri, 18 Mar 2016, Denis Davydov wrote:
>>> 
>>>> Dear all, 
>>>> 
>>>> Although I saw this issue on the mailing list, that was related to broken compilers, i don’t think it’s the case here as `mpicc -E` seems to be ok.
>>>> Log is attached.
>>>> 
>>>> Kind regards,
>>>> Denis 
>>>> 
>>>> 
>> 
>>