Cygwin requires some extra LDFLAGS and LIBADD be passed when linking. Rather than add these extra flags to all invocations, I've created special @CYGWIN_EXTRA_*@ symbols to contain them. This is basically copied from libxml2. Also ordering of *_LIBADD and *_LDFLAGS seems to be important in automake. Specifically: if libvirt_la_SOURCES comes after libvirt_la_LDFLAGS then automake wasn't able to determine the list of sources (I've no idea why but possibly because libvirt_la_SOURCES is defined in terms of other variables?), so I've reordered these lines. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903