Failing title hash calculation is fatal. We need either the keys from that file or hash for config file.

Call AC_LIBTOOL_WIN32_DLL macro
See http://sourceware.org/autobook/autobook/autobook_254.html

Hack lt_cv_deplibs_check_method to allow linking static libraries
inside a shared library
(Hack comes from VLC)

Simplified _calc_vuk(): factorized duplicated key calculation code.
Call mmc_open() only once. No need to call mmc_open() for every key...