[Bug fortran/54797] Gnu Fortran compiler does not recognize module file it created

[sgk at troutmask dot apl.washington.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54797

--- Comment #3 from Steve Kargl <sgk at troutmask dot apl.washington.edu> 2012-10-03 19:55:46 UTC ---
On Wed, Oct 03, 2012 at 07:37:24PM +0000, christopher.romick at gmail dot com
wrote:
> 
> I have indeed tried include -I but it makes no differences. The compilation
> returns the same error.
> 
> The 1st line states
> 
> GFORTRAN module created from /.../odesolver/LSODE/datodesol.f90 on Wed Oct  3
> 15:35:10 2012
> 
> of course the ... is the rest of the full path
> 

Which version of gfortran?  With version 4.4.x and above 
you should have a version number.

% gfc44 -c a.f90 && head -1 a.mod
GFORTRAN module version '0' created from a.f90 on Wed Oct  3 12:50:55 2012
% gfc45 -c a.f90 && head -1 a.mod
GFORTRAN module version '4' created from a.f90 on Wed Oct  3 12:51:00 2012
% gfc46 -c a.f90 && head -1 a.mod
GFORTRAN module version '6' created from a.f90 on Wed Oct  3 12:51:04 2012
% gfc47 -c a.f90 && head -1 a.mod
GFORTRAN module version '9' created from a.f90
% gfc4x -c a.f90 && head -1 a.mod
GFORTRAN module version '9' created from a.f90

Do you have more than one version of gfortran installed
on the system?  It appears as if you are building the
module with an older gfortran and trying to use with a
newer version.