Edd Barrett [2011-11-03, 10:31:39]: > Hi, > > As some of you know, I have been trying to update the octave port in > OpenBSD, as I would like to use it's glpk support for linear > optimisation problems. > > I have been working with John Eaton (upstream) on this and we almost > have a working build but there is a toolchain issue regarding the mixing > of g77 libraries (in particular, blas and lapack) with gcc4 objects. > > See this: > https://savannah.gnu.org/bugs/index.php?34725 > > I am not confident enough to make such a big change alone, so lets have > some input from some of the senior porters: > > * Can the GCC4 arches use gfortran by default instead of g77? > Looking at fortran.port.mk, g77 is always default, however I notice > some ports forcing g77 anyway. Perhaps a hangover from a legacy? > > * If the above point were possible, octave could be marked for gcc4 > only (either lang/gfrotran for gcc4 arches or lang/gcc/4.x for non > gcc4 arches; see fortran.port.mk for how i arrived at this logic) > > I am going to try building blas and lapack with gfortran to verify this > really is the issue, because as it stands, this is just a hunch.
yes, when we tried this a year ago, we also ran into problems when mixing libraries built by g77 and by gfortran. we had the octave port building ok back then, all with gfortran. i didn't commit the update since there were still some issues, in the tests and also using gnuplot from octave failed completely, which i didn't find acceptable. we may consider switching the default fortran compiler, yes. before that happens, you just need to set MODFORTRAN_COMPILER in the relevant ports that octave depends on. fortran.port.mk should do the rest. but first make it work reasonably well... :) if it is of any help, i can try to dig up the diff i had a year ago.
