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I need to use the r.inund.fluv add-on in GRASS. I installed the gfortran compiler in order to use the script. The problem is, I do not know how to compile the files in gfortran. Im using windows

Here are the files for r.inund.fluv.

I emailed the author of the script, Roberto Marzocchi and he instructed me to do the following and I was stuck at step 4.:

Try the following way:

1) save the file r.inund.fluv within the folder named scripts within the grass main folder

2) create a file r.inund.fluv.bat in the folder named bin and copy the following row:

@"%GRASS_SH%" -c '"%GISBASE%/scripts/r.inund.fluv" %*'

3) save the file r.inund.fluv.html within the folder named doc

4) create a folder named fortran_code within your etc folder and save the four fortran code 2d_path.f90, etc etc. then try to compile the 4 fortran codes using for the binary file the same name of the source code without any extension e.g (2d_path.f90 become 2d_path)

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+1 for being the first to mention Fortran on this site and for being brave enough to dive in! –  whuber Mar 5 '11 at 22:28
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2 Answers

up vote 0 down vote accepted

How about f90 -o 2d_path 2d_path.f90 ?

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I tried running it and it produced this error: C:\Program Files\GRASS-64\etc\fortran_code>gfortran -o 2d_path 2d_path.f90 C:\Program Files\gfortran\bin/ld.exe: cannot open output file 2d_path.exe: Permi ssion denied collect2: ld returned 1 exit status –  teamAngat Mar 5 '11 at 2:13
    
Do you have permission to write in that directory? –  iant Mar 5 '11 at 18:08
    
Thanks. I had already resolved it by placing it first in a public directory so that I can compile it. –  teamAngat Mar 6 '11 at 12:35
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Helpful Link http://gcc.gnu.org/wiki/GFortran

Compilers for Windows: http://gcc.gnu.org/wiki/GFortranBinaries#Windows

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Thanks. I downloaded the compiler there –  teamAngat Mar 6 '11 at 15:01
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