gfortran appears to pick up .mod files from default locations in preference to
directories specified by -I arguments on the command line. So, for example, if
foo.mod is in /usr/include and foo.mod is in /home/bar/somedir and the user
types:
gfortran -I/home/bar/somedir ...
then gfortran will pick up /usr/include/foo.mod . This causes particular
problems when the system gfortran distributed with the OS is, say, 4.2 and a
user has installed gfortran 4.3 since nothing the user can specify on the
command line will prevent .mod files from installed packages (generally
compiled with 4.2) being used.
--
Summary: gfortran looks for .mod files in default locations
before -I directories
Product: gcc
Version: 4.3.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: fortran
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: David at ham dot dropbear dot id dot au
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36441