Build with automake-1.13 broken (fix included)
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verement
Automake-1.13 removed long obsolete AM_CONFIG_HEADER macro completely ( http://lists.gnu.org/archive/html/automake/2012-12/msg00038.html ), and errors out upon seeing it.
Attached patch replaces it with proper AC_CONFIG_HEADERS
Also, change AM_INIT_AUTOMAKE to AM_INIT_AUTOMAKE([foreign]), as libid3tag doesn't conform to strict GNU standards.