I ran into a small problem while trying to build this so thought
I would pass it along.
My version of Sundials/IDA happened to be configured with the Lapack
dense solvers as one of the options. So while running configure, the step
OCTAVE_CHECK_LIB(sundials_ida, SUNDIALS_IDA,
failed because the link step couldn't find those Lapack functions.
I tried replacing
LIBS="$KLU_LDFLAGS $KLU_LIBS $LIBS"
with
LIBS="$KLU_LDFLAGS $KLU_LIBS $LAPACK_LIBS $BLAS_LIBS $LIBS"
but that didn't work (apparently) because $LAPACK_LIBS $BLAS_LIBS
weren't yet defined.