Paul Ramsey writes: > > Norman, > What are your versions of automake, autoconf? autoconf 2.57 automake 1-7.3 These are the standard Cygwin 'devel' versions and are required for libtool 1.4, the minimum version with Cygwin DLL support note the 'stable' Cygwin versions of these are autoconf 2.13 automake 1.4p5 Norman