#3659 pic port configuration fails on big-endian host

[Philipp Klaus Krause]

A plain "./configure" on Debian GNU/Linux on ppc64:

[…]
config.status: error: in `/home/philipp/sdcc-trunk/device/lib/pic16':
config.status: error: Something went wrong bootstrapping makefile fragments
    for automatic dependency tracking.  If GNU make was not used, consider
    re-running the configure script with MAKE="gmake" (or whatever is
    necessary).  You can also try re-running configure with the
    '--disable-dependency-tracking' option to at least be able to build
    the package (albeit without support for automatic dependency tracking).
See `config.log' for more details
configure: error: ./configure failed for device/lib/pic16