------- Comment #3 from hjl at lucon dot org 2006-03-11 20:15 ------- I don't know how to preprocess Fortran code. I still see those failures with gcc version 4.2.0 20060311 (experimental) [trunk revision 111963 clean] on Linux/x86-64. For example: [hjl@gnu-13 tonto]$ /usr/gcc-4.2/bin/gfortran -I. -I./GCC-gfortran-on-LINUX/modules -O -c 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 for instructions. I tried [hjl@gnu-13 tonto]$ /usr/gcc-4.2/bin/gfortran -c -O shell.f90 In file f95files/shell1.F90:29 use TYPES_MODULE 1 Fatal Error: Can't open module file 'types_module.mod' for reading at (1): No such file or directory [hjl@gnu-13 tonto]$ Can you show your output of compiling f95files/shell1.F90? BTW, I need this patch --- tonto/Makefile.pl.gcc 2006-02-05 07:47:12.000000000 -0800 +++ tonto/Makefile.pl 2006-02-05 08:02:03.000000000 -0800 @@ -41,6 +41,7 @@ my %vendors = ( 'PGI' => 'Portland', 'INTEL' => 'Intel', 'ABSOFT' => 'Absoft', +'GCC' => 'gcc', ); ################################################################################ to configure tonto for gcc 4.2. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26106