See: http://gcc.gnu.org/ml/fortran/2008-09/msg00380.html and following emails.
The configure script does link tests which cause some kinds of cross compilations to fail. Solution (cf. email thread, see above link): a) Approved patch in the link above b) Remove "AC_LIBTOOL_DLOPEN" which does not seem to be used c) Add an if-block around the AC_CHECK_FUNCS d) Check what else is needed, e.g. AC_CHECK_LIB -- Summary: Fix libgfortran compiling to support GCC_NO_EXECUTABLES Product: gcc Version: 4.4.0 Status: UNCONFIRMED Keywords: build Severity: normal Priority: P3 Component: fortran AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: burnus at gcc dot gnu dot org http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37634