Amper audio player for GNU/Linux and X11

[ketmar via Digitalmars-d-announce]

fixed some issues with 64bits compilation. tnx, NotSpooky!

yet it is not possible to build 64bit Amper due to dmd bug:

	Error: undefined identifier '__va_list_tag'

yes, exactly like that: no error line, nothing more. sorry, i don't have 
64bit system, so i cannot do much with that. i tried some obvious 
workarounds, but without any success. 32bit ftw!