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Ok... I better understand now!

My purpose of trying to analyse this data is for research. Unfortunately I don't have lot of programming experience, that's why I'm maybe asking silly questions...
...

here is the output:

==> rd_wr_formatted.exe <==
ELF



P�4�!4(44�4�



 
!

$�
(�
0�4�8�<�@�D�H�
�D$`��������$������$������������
�
Dž �����Dž$���...

Yes this is the description of the data that I want to convert using the fortran program.

My SRTM data sample has the following description:

ncols 6001
nrows 6001
xllcorner -10.000416206603
yllcorner 34.999583430181
cellsize 0.00083333333333333...

Ok I add a '_' to the write_geogrid in the c code. Now the compilation seems ok because there is no errors. But when I'm executing I have this error:

[greg@Uranus:~/WRF/WPS/data/SRTM_conversion]$...

Results:

[greg@Uranus:~/WRF/WPS/data/SRTM_conversion]$ nm write_geogrid.o
U __stack_chk_fail
U __strncpy_chk
U fclose
U fopen
U free
U...

Ok the iargc error disappeared. But I still have the following errors:

[greg@Uranus:~/WRF/WPS/data/SRTM_conversion]$ make
gfortran -c -ffree-form -O -fconvert=big-endian -frecord-marker=4...

For iargc correction, I've juste added (). Here is my full program code:

program rd_wr_binary

implicit none

integer, external :: iargc

integer :: istatus
character (len=256)...

Ok I did the changes and it's better... but not yet perferct.

Now I have the following errors:

[greg@Uranus:~/WRF/WPS/data/SRTM_conversion]$ make
gfortran -c -ffree-form -O...

Thank you, but I don't really understand. I'm not the original creator of the program. Can you explain me what do I need to change in my code in order to compile? I replace iargc by...

Hello everyone,

I'm trying since a few days to compile a f90 program with gfortran (on Ubuntu) with a makefile. The fortran program calls 2 routines written in C.

Here is my makefile:

FC ...