[petsc-users] Removing unused warning during gnu compile

[Barry Smith]

  Maybe try  the gfortran option listed here http://stackoverflow.com/questions/24493754/suppress-unused-variable-warning-in-gfortran-using-wextra-and-wall-fortran   try passing --FFLAGS=-Wno-unused-parameter as an additional argument to ./configure

  Barry


   
> On Dec 23, 2015, at 8:45 PM, TAY wee-beng <zonexo at gmail.com> wrote:
> 
> Hi Barry,
> 
> I got more but I only show some. Or is it because I use petsc.h instead of the individual *.h?
> 
> Thank you
> 
> Yours sincerely,
> 
> TAY wee-beng
> 
> On 23/12/2015 12:33 PM, Barry Smith wrote:
>>  Are the warning messages below the only ones you get or do you get many more?
>> 
>>   Barry
>> 
>>> On Dec 22, 2015, at 7:48 PM, TAY wee-beng <zonexo at gmail.com> wrote:
>>> 
>>> Hi,
>>> 
>>> When I compile using gfortran, I need it to warn me of any unused parameter in my code. However, I found that it also warns of unused parameter in PETSc code, as shown below. How can I let it only display warning for my own code, instead of PETSc? Thanks.
>>> 
>>> wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petscsnes.h:116.54:
>>>    Included at /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petsc.h:15:
>>>    Included at fractional_initial.F90:28:
>>> 
>>>      integer(kind=selected_int_kind(5)) SNES_QN_LBFGS
>>>                                                      1
>>> Warning: Unused parameter 'snes_qn_lbfgs' declared at (1)
>>> /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petscsnes.h:144.64:
>>>    Included at /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petsc.h:15:
>>>    Included at fractional_initial.F90:28:
>>> 
>>>      integer(kind=selected_int_kind(5)) SNES_QN_RESTART_DEFAULT
>>>                                                                1
>>> Warning: Unused parameter 'snes_qn_restart_default' declared at (1)
>>> /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petscsnes.h:145.61:
>>>    Included at /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petsc.h:15:
>>>    Included at fractional_initial.F90:28:
>>> 
>>>      integer(kind=selected_int_kind(5)) SNES_QN_RESTART_NONE
>>>                                                             1
>>> Warning: Unused parameter 'snes_qn_restart_none' declared at (1)
>>> /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petscsnes.h:147.65:
>>>    Included at /home/wtay/Lib/petsc-3.6.2_shared_gnu_debug/include/petsc/finclude/petsc.h:15:
>>>    Included at fractional_initial.F90:28:
>>> 
>>>      integer(kind=selected_int_kind(5)) SNES_QN_RESTART_PERIODIC
>>>                                                                 1
>>> 
>>> -- 
>>> Thank you
>>> 
>>> Yours sincerely,
>>> 
>>> TAY wee-beng
>>> 
>