re-spin to add some missing headers to download: wget -r -np -nH --cut-dirs=2 http://matzeri.altervista.org/cygwin-1.7/SuiteSparse/ libSuiteSparse-devel/libSuiteSparse-devel-3.4.0-3.tar.bz2 libSuiteSparse-devel/setup.hint setup.hint SuiteSparse-3.4.0-3-src.tar.bz2 SuiteSparse-3.4.0-3.tar.bz2 Regards Marco