Thanks a lot, that works Martin v. Loewis schrieb: > I´m trying to call a fortran routine from a c++ routine > using gcc resp. g77/g++ , but dont get it to work. > Can somebody tell me how to do it? You need to declare the external function as extern "C". Martin ---------------------------------------------------------------------- Dr.Peter Hahne, Zum Pitschgrund 7a, 64747 Breuberg Rai-Breitenbach, Tel. +49 6165 912424, Fax +49 6165 912425, Mobile +49 171 5178749