contrib: dca: Invoke autoreconf
contrib: dca: Invoke autoreconf

The shipped aclocal.m4 doesn't play well when cross compiling for win32
with a compiler that isn't gcc

xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc,xkfz007/vlc