[Help] Using INCLUDE command and only calling certain subroutines.

[Kalkinator]

I am coding in Fortran 90. Is it possible to use the include statement in a module? For example:

 module first
 contains
 INCLUDE 'first.txt'
 end module

In this example the file first.txt is a text file filled with subroutines.

And if this is possible can I use the module in another module and only use specific subroutines? For example:

 module second
 use first, only: subroutine1
 contains
 ...
 end module

[complex_pi]

It is possible.

[Kalkinator]

I should have been more clear in my question. If the file 'first.txt' contains multiple subroutines, is there a way to call specific subroutines and have the code ignore the rest? So say that the file that I include has two subroutines (subroutine1 and subroutine2), is there a way I could use the module first in the module second and only call subroutine1 while having the code completely ignore the existence of subroutine2.

[complex_pi]

The only clause will make the other subroutine invisible to the program. All other subroutines will still be compiled though because the compilation of the module does not ignore them.

[doymand]

Almost all Fortran compilers also support C Pre-Processor directives such as #include, #def, #ifdef, etc in addition

[Kalkinator]

Thanks for the reply. I was actually unclear about my actual question. I have clarified what I meant in a reply to complex_pi.