For people setting up the Asterisk PBX without any Zaptel hardware, the ztdummy kernel module is necessary for some features of Asterisk to work (by emulating the Zaptel hardware's timer). All that's needed is this line added to src_unpack in the existing ebuild: sed -i -e "s:#\( ztdummy.o.*\):\1:" Makefile This uncomments the ztdummy driver's entry in the Makefile. A more robust ebuild might also advise that ztdummy requires the standard usb_uhci driver, and make these changes dependent on a local USE variable (perhaps USE=ztdummy).
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