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David, Those routines are all in gemlib.a, however, it appears that you didn't compile your code using the g77 flag -fno-second-underscore. See the $CONFIGDIR/Makeinc.darwin for compilations flags you should be using with your own code. Steve Chiswell Unidata User Support On Mon, 2006-01-23 at 11:31, David Blanchard wrote: > I'm trying to port an old fortran program that links to some of the > gempak libraries. In the past, I would link it against "gemlib.a" and > the gempak routines were satisfied. > > My current system is MacOS X 10.4 and the most current version of > gempak. > > The load errors are... > > /usr/bin/ld: Undefined symbols: > _in_bdta__ > _lc_sare__ > _sn_clos__ > _sn_gtim__ > _sn_opnf__ > _sn_rdat__ > _sn_snxt__ > _sn_sstn__ > _sn_stim__ > _ti_ctoi__ > > Which lib(s) do these require? > > David > > +------------------------------------------------------------------------+ > | David O. Blanchard Flagstaff, Arizona address@hidden | > +------------------------------------------------------------------------+