Description:

gfortran compilation does no work on files to be preprocessed (have includes).

Es:
gfortran -O2 -m64 -fcray-pointer -fno-second-underscore -Dlinux -Dgfortran -DLITTLE_ENDIAN -c abortx.F
cc1: error: unrecognized command line option "-fcray-pointer"
cc1: error: unrecognized command line option "-fno-second-underscore"

Seems cc1 (called in pre-processing the .F) does not support fortran arguments.
Found that this happens when one builds fortran support separated from gcc.
How to solve this?
I have to rebuild gcc-fortran package, take cc1 from that build and substitute cc1 on system.

Additional info:
* package version(s)
GNU Fortran (GCC) 4.2.2
gcc-fortran 4.2.2-1

Steps to reproduce:
Try this source:

my_inc.h:
###################################
integer :: an_integer
###################################

my_prog.F90:
###################################
program my_prog

include "my_inc.h"
print *, 'Hello world'

end program my_prog
###################################

and compile with

gfortran -fno_second_underscore -I. -o my_prog my_prog.F90
cc1: error: unrecognized command line option "-fno-second-underscore"

Albeit the "-fno_second_underscore" is a legal gfortran option, it is not trecognized by cc1.
(Note that without that option the code compiles...).