Without this there can be compile errors on some platforms or
compiler versions.
CFLAGS="${CFLAGS} ${OOCD_CFLAGS}" \
LDFLAGS="${LDFLAGS} ${OOCD_LDFLAGS}" \
../openocd-${OOCD}/configure --enable-maintainer-mode \
CFLAGS="${CFLAGS} ${OOCD_CFLAGS}" \
LDFLAGS="${LDFLAGS} ${OOCD_LDFLAGS}" \
../openocd-${OOCD}/configure --enable-maintainer-mode \
--prefix=${PREFIX} \
--enable-dummy \
--enable-ft2232_libftdi \
--prefix=${PREFIX} \
--enable-dummy \
--enable-ft2232_libftdi \