[mpich-discuss] mpich build error

[Jeff Hammond]

Since C is ABI compatible, just build MPICH with GCC and like with ICC
apps.

FWIW I compile MPICH with Intel 15/16 all the time without issues. But I'll
try the latest git version to be sure.

Jeff

On Wednesday, October 21, 2015, Sayan Ghosh <sayandeep52 at gmail.com> wrote:

> Thanks Rob, here is the specific part from my mpl config, almost looks
> like your config:
>
> configure:13058: checking for strncmp
> configure:13058: icc -std=gnu99 -o conftest       conftest.c  >&5
> configure:13058: $? = 0
> configure:13058: result: yes
> configure:13070: checking whether strncmp needs a declaration
> configure:13089: icc -std=gnu99 -c      conftest.c >&5
> configure:13089: $? = 0
> configure:13097: result: no
>
> I get build errors even with GCC 4.9 and clang with older versions of
> mpich, so this is definitely a system issue as you mentioned.
>
> sg at sg:~/sources/mpich-3.1.4/build$ cat /etc/debian_version
> 8.2
> sg at sg:~/sources/mpich-3.1.4/build$ uname -a
> Linux sg 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt11-1+deb8u5 (2015-10-09)
> x86_64 GNU/Linux
>
> On Wed, Oct 21, 2015 at 7:39 AM, Rob Latham <robl at mcs.anl.gov
> <javascript:_e(%7B%7D,'cvml','robl at mcs.anl.gov');>> wrote:
>
>> The warnings are intel's preprocessor being a bit pickier than gnu's cpp
>>
>> the errors, though, are indeed odd.
>> I will eat my sock if strncmp really truly is not on your system; far
>> more likely the strncmp test failed for some unrelated reason.
>>
>> Look at your src/mpl/config.log.  On my system, the (successful) check
>> for strncmp looks like this:
>>
>> configure:12723: checking for strncmp
>> configure:12723: ccache gcc -o conftest -Wall -g -Wno-unused-label
>> -fstack-usage -fPIC -ggdb3   -I /home/robl/work/soft/lustre/include
>> conftest.c  >&5
>> conftest.c:65:6: warning: conflicting types for built-in function
>> 'strncmp'
>>  char strncmp ();
>>       ^
>> configure:12723: $? = 0
>> configure:12723: result: yes
>> configure:12734: checking whether strncmp needs a declaration
>> configure:12752: ccache gcc -c -Wall -g -Wno-unused-label -fstack-usage
>> -fPIC -ggdb3   -I /home/robl/work/soft/lustre/include  conftest.c >&5
>> configure:12752: $? = 0
>> configure:12759: result: no
>>
>> Does yours look like this?
>>
>> ==rob
>>
>> Hi,
>>>
>>> I am getting an error while trying to compile the latest mpich (from the
>>> git repo) with Intel 15.0.1 compiler...excerpt of the error:
>>>
>>> In file included from ../../.././src/mpl/include/mpl.h(10),
>>>                   from ../../.././src/mpl/src/mplstr.c(7):
>>> ./include/mplconfig.h(238): warning #14: extra text after expected end
>>> of preprocessing directive
>>>    #ifndef _mpl_                 ^
>>>
>>> In file included from ../../.././src/mpl/include/mpl.h(10),
>>>                   from ../../.././src/mpl/src/mplstr.c(7):
>>> ./include/mplconfig.h(239): warning #2217: white space is required
>>> between the macro name "_mpl_" and its replacement text
>>>    #define _mpl_                   ^
>>>
>>> In file included from ../../.././src/mpl/include/mpl.h(111),
>>>                   from ../../.././src/mpl/src/mplstr.c(7):
>>> ../../.././src/mpl/include/mplstr.h(48): error: #error directive:
>>> "strncmp is required"
>>>    #error "strncmp is required"
>>>     ^
>>>
>>> ../../.././src/mpl/src/mplstr.c(41): warning #266: function "isdigit"
>>> declared implicitly
>>>                if (isdigit(nc)) {
>>>                    ^
>>>
>>> Internal error: null pointer
>>>
>>>
>>> Please suggest.
>>>
>>> --
>>> Regards,
>>> Sayan
>>>
>>>
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>>>
>> --
>> Rob Latham
>> Mathematics and Computer Science Division
>> Argonne National Lab, IL USA
>> _______________________________________________
>> discuss mailing list     discuss at mpich.org
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>>
>
>
>
> --
> Regards,
> Sayan
>


-- 
Jeff Hammond
jeff.science at gmail.com
http://jeffhammond.github.io/
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