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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/67250] gfortran does not faithfully preprocess the way cpp does
Date: Mon, 17 Aug 2015 20:01:00 -0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67250

--- Comment #4 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
(In reply to Jeff Hammond from comment #3)
> Unfortunately, this does not change anything.
> 

I saying gfortran defaults to that and you can use that option to cpp to get
the same behavior. 





> > gfortran-5 -traditional-cpp -I. -E source.F 
> # 1 "source.F"
> # 1 "<built-in>"
> # 1 "<command-line>"
> # 1 "source.F"
> C
> C OLD SCHOOL COMMENTS
> C
>       subroutine xyz(stuff)
>       implicit none
> 
> # 1 "header.fh" 1
> ! comment
>       integer foo
>       external foo
> # 7 "source.F" 2
>       integer stuff
>       integer err_##handle;       integer l_##handle,k_##handle;
>       err_##handle=foo(100,#handle,l_##handle,k_##handle);       if
> (.not.err_##handle) call bar("PUSH"#handle,#100);
>       print*,stuff
>       return
>       end