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Asked: 2026-06-05T22:07:45+00:00

I’m attempting to add a cmake build system to an old fortran code that

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I’m attempting to add a cmake build system to an old fortran code that is littered with

!DEC$

style preprocessor commands. The old build system generated an awk script that converted these to the traditional C style preprocessor. The makefile would then just pipe the output directly to the compiler. I know with cmake that I can generate an intermediate file but I would like to avoid that if possible because I want to run this over every file.

Is there a method in cmake to pipe the output of a command directly to the compiler? Basically is there away to do the equivalent to

awk -f script.awk source.f | gfortran -x f95 -cpp -c -

in cmake.

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1 Answer

  1. Editorial Team

    You can add a cmake add_custom_command to run awk and save the output to another file, in which case there will be no need for piping. To have piping, I think a bash script can be written which includes the piped statement. The script can then be defined as the cmake compiler (Using a different compiler).

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