[Met_help] MET compilation error

[John Halley Gotway]

Holly,

I notice in the error message you sent me that you had to specify in the Makefile where to find the gfortran library (-L/usr/local/gfortran/lib -lgfortran).  That leads me to believe that it's not in
a standard location that the gfortran compiler already knows about.

Try checking the version numbers of the compilers you're using by typing the following:
g++ --version
gfortran --version

Do the version numbers match?  If not, that's a problem.

Regarding the specific error message you're seeing, the "__powidf2" function is defined on my machine in the "gcc" library file.  On my machine that's in "/usr/lib/gcc/i486-linux-gnu/4.1.2/libgcc.a"
but my that's a standard location and the gfortran compiler knows where to find the GCC library.  However, since your gfortran library is not in a location that the gfortran compiler already knows
about, I'm guessing the same is true of the GCC library... leading to the error you're seeing.

If the compiler version numbers do match above, you could try this next:
- Locate the file "libgcc.a" on your system.
- Then in the Makefile, after "-L/usr/local/gfortran/lib -lgfortran" add the following "-L/path/to/gcc/directory -lgcc"
- Try rebuilding MET.

Let me know how it goes.

Thanks,
John

Holly Hassenzahl wrote:
> Hi John-
> 
> Thanks for your quick reply.  Unfortunately, I had already compiled
> BUFRLIB as you suggested.  So these errors have been occurring,
> regardless of using the "-fno-second-underscore" tag.
> 
> Holly
> 
> ___________________________________
> Holly C. Hassenzahl
> Meteorologist, Science Analyst
> Data Products Group
>  
> Weather Central, Inc.
> 401 Charmany Drive Suite 200
> Madison, WI 53711
> +1.608.274.5789
> +1.608.276.4600
> http://www.weathercentral.tv
>  
> 
> -----Original Message-----
> From: John Halley Gotway [mailto:johnhg at rap.ucar.edu] 
> Sent: Tuesday, August 11, 2009 4:51 PM
> To: Holly Hassenzahl
> Cc: met_help at ucar.edu
> Subject: Re: [Met_help] MET compilation error
> 
> Holly,
> 
> I believe this error has to do with how you compiled BUFRLIB.  Please
> take
> a look at the sample commands for compiling BUFRLIB on this page:
> http://www.dtcenter.org/met/users/support/online_tutorial/METv2.0/compil
> ation/req_libs.php
> 
> Try compiling BUFRLIB with the following commands:
>       gcc -c -DUNDERSCORE *.c
>       gfortran -c -DUNDERSCORE -fno-second-underscore *.f *.F
>       ar crv libbufr.a *.o
> 
> I think that "-fno-second-underscore" will fix the error you're seeing.
> 
> Hope that does the trick.
> 
> Thanks,
> John Halley Gotway
> johnhg at ucar.edu
> 
>> Hello-
>>
>> I am trying to compile MET 2.0 using GNU compilers and am getting the
>> following errors when making the pb2nc application:
>>
>> /usr/bin/g++ -o pb2nc pb2nc.cc pb2nc_Conf.o numpbmsg.o openpb.o
> readpb.o
>> dumppb.o \
>> -Wall -Wshadow -static   -DMET_BASE=\"/home/ldm/METv2.0\" \
>> -I../../lib -I/home/ldm/NETCDF/netcdf-3.6.3/include
>> -I/home/ldm/GSL/gsl-1.12/include -I/home/ldm/BUFRLIB  \
>> -L../../lib -L/home/ldm/NETCDF/netcdf-3.6.3/lib
>> -L/home/ldm/GSL/gsl-1.12/lib -L/home/ldm/BUFRLIB  \
>> -lbufr -lvx_pb_util \
>> -lvx_met_util -lvx_analysis_util -lvx_wrfdata -lvx_met_util \
>> -lvx_contable -lvx_grib_classes \
>> -lvx_econfig -lvx_gsl_prob -lgsl \
>> -lvx_plot_util  -lvx_render -lvx_pxm -lvx_color -lvx_ps -lvx_afm \
>> -lvx_data_grids -lvx_gnomon -lvx_nav -lvx_cal -lvx_util -lvx_math -lm
> \
>> -lnetcdf_c++ -lnetcdf \
>>   -L/usr/local/gfortran/lib -lgfortran
>> /home/ldm/BUFRLIB/libbufr.a(ufbtab.o)(.text+0x731): In function
> `ufbtab_':
>> : undefined reference to `__powidf2'
>> /home/ldm/BUFRLIB/libbufr.a(ufbtab.o)(.text+0xf29): In function
> `ufbtab_':
>> : undefined reference to `__powidf2'
>> /home/ldm/BUFRLIB/libbufr.a(rdcmps.o)(.text+0x294): In function
> `rdcmps_':
>> : undefined reference to `__powidf2'
>> /home/ldm/BUFRLIB/libbufr.a(rdtree.o)(.text+0x1fd): In function
> `rdtree_':
>> : undefined reference to `__powidf2'
>> collect2: ld returned 1 exit status
>> make[3]: *** [pb2nc] Error 1
>> make[2]: *** [all] Error 2
>> make[1]: *** [targets] Error 2
>> make: *** [all] Error 2
>>
>> I have tried emptying out all of the F2C lines in the Makefile, as
> well as
>> emptying out all expect the -lf2c (as recommended to someone in April
> of
>> this year).
>>
>> Is there something else I am missing or could try?  Thank you...
>>
>> Holly
>>
>> -----------------------------------------------
>> Holly Hassenzahl
>> Meteorologist, Science Analyst
>> Data Products Group
>>
>> Weather Central, Inc.
>> 401 Charmany Drive Suite 200
>> Madison, WI 53719
>> 608.274.5789
>> http://weathercentral.tv
>>
>> _______________________________________________
>> Met_help mailing list
>> Met_help at mailman.ucar.edu
>> http://mailman.ucar.edu/mailman/listinfo/met_help
>>
> 
>