Re: Compiling file with subroutines using gfortran

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You are using a wrong option that may overwrite your fortran source file with the result of the compilation..
To create only the .o file use:

gfortran -O3 -ffree-form*-c*  myfile.f

or, f you want:

gfortran -O3 -ffree-form*-c*  myfile.f*-o myfile.o*

it will do the same thing.

Patrick

Le 01/01/2023 à 09:52, Hans Lonsdale via Gcc-help a écrit :

I want to compile a file containing a number of subroutines.

I am using the command

gfortran -O3 -ffree-form -o myfile.f

But getting problems with recursive and END PROGRAM statement.

All I want is making the object file.

44 | recursive subroutine quicksort (array)
       | 1
Error: Unclassifiable statement at (1)
myfile.f:112:3:

   112 | end subroutine quicksort
       |   1
Error: Expecting END PROGRAM statement at (1)
myfile.f:122:35:

Have done

gfortran -O3 -ffree-form -o myfile.f

The command is supposed to make the object file, but I get errors with END PROGRAM declaration.





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