hello, because nobody was able or wants to help me, i have to help myself. the solution was that cygwin doesnt work correctly with th newest version of the gcc compiler (4.9.0.1) integrated. i have to install cygwin with the gcc compiler version 4.8.3.3 and lo and behold, all tests passsed correctly. it costs me the whole weekend to check that.
best regards hans -- Gromacs Users mailing list * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/GMX-Users_List before posting! * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists * For (un)subscribe requests visit https://maillist.sys.kth.se/mailman/listinfo/gromacs.org_gmx-users or send a mail to gmx-users-requ...@gromacs.org.