* Bump build-dependency on debhelper. * Fix hyphens in man pages (lintian). * Pass -Wl,-as-needed to LD_FLAGS to quit dpkg-shlibdeps warnings. * Add support for cross-compiling. * Move to quilt for managing patches, split debian diff into 0[1-5]*.patch. * 06_gcc_warnings.patch: fix gcc -Wall warnings.