Ubuntu
gcc-4.2 package

cannot link against libgfortran2

Bug #158673 reported by Rafael de Pelegrini Soares
6
Affects Status Importance Assigned to Milestone
gcc-4.2 (Ubuntu)
Invalid
Low
Matthias Klose

Bug Description

Binary package hint: libgfortran2

Hi,

I'm using Ubuntu 7.10. If I try to compile/link a Fortran program with gfortran-4.2/libgfortran2 I get a:
'/usr/bin/ld: cannot find -lgfortran'

If I create a link:
'sudo ln -s /usr/lib/libgfortran.so.2 /usr/lib/libgfortran.so'

I get undefined references to `_gfortran_copy_string'

But if I use gfortran-4.1/libgfortran1 instead, then everything works fine.

I think there is a bug with the libgfortran2 package and I'll be glad to provide any additional information.

Thank you in advance.

Revision history for this message
Rafael de Pelegrini Soares (rafael-rps) wrote :

Hi,

What I've done to get a working Fortran95 compiler with Ubuntu 7.10 was:

1. Install the package gfortran-4.1
2. Select '/usr/bin/gfortran-4.1' as an alternative for 'f95' (I recommend galternatives for this task)
3. Compile any Fortran code with 'f95' and link against 'libgfortran'

Revision history for this message
Matthias Klose (doko) wrote :

Creating the symlink by hand is the wrong approach. Please install the gfortran package instead.

Changed in gcc-4.2:
assignee: nobody → doko
importance: Undecided → Low
status: New → Invalid
Revision history for this message
Russel Winder (russel) wrote :

Manually creating a symlink may be the wrong approach but it is currently the only really successful approach. Clearly it makes sense to have a system that allows 4.1 and 4.2 to be installed at the same time, however there is a blocking problem here:

  gcc ......... -lgfortran

fails. I have libgfortran2 properly installed and gfortran properly installed and I still have to do the manual symlink to get the link to complete.

I assume this and Bug #156524 are effectively the same.

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