Building uClibc with libubacktrace requires libgcc_eh.a to be available,
but gcc does not build it unless it is configured to generate shared libs.
However, libgcc_eh.a does not *require* shared libs support, as it is a
static library.
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@anciens.enib.fr>
