I tried to compile the TONTO_1_0_SPEC branch of Tonto:

http://sourceforge.net/projects/tonto-chem

I got

/usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c -o
./GCC-gfortran-on-LINUX/objects/shell1.o f95files/shell1.F90
f95files/shell1.F90: In function âprocess_keywordâ:
f95files/shell1.F90:571: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

/usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c -o
./GCC-gfortran-on-LINUX/objects/spacegroup.o f95files/spacegroup.F90
f95files/spacegroup.F90: In function âput_matching_hm_symbolsâ:
f95files/spacegroup.F90:2455: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

/usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c -o
./GCC-gfortran-on-LINUX/objects/scfdata.o f95files/scfdata.F90
f95files/scfdata.F90: In function âprocess_keywordâ:
f95files/scfdata.F90:972: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

/usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c -o
./GCC-gfortran-on-LINUX/objects/mol_main.o f95files/mol_main.F90
f95files/mol_main.F90: In function âprocess_keywordâ:
f95files/mol_main.F90:3835: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.

/usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c -o
./GCC-gfortran-on-LINUX/objects/mol.o f95files/mol.F90
f95files/mol.F90: In function âput_scf_energy_in_mo_pairsâ:
f95files/mol.F90:14792: fatal error: gfc_todo: Not Implemented: Scalarization
of non-elemental intrinsic: __transfer1
compilation terminated.


-- 
           Summary: Gfortran can't compile tonto
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Keywords: meta-bug
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: hjl at lucon dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26106