Alexander Barth wrote: > On Fri, Jun 5, 2009 at 12:20 PM, Alexander > Barth<barth.alexan...@gmail.com> wrote: > >> Hi all, >> >> I have compiled octave with the option enable-64 (and compiled LAPACK, >> BLAS and SuiteSparse to use 64-bit indexes). I would like to make the >> octave-forge package arpack to work with this option. As BLAS, I have >> compiled the Fortran ARPACK library with the option >> -fdefault-integer-8 (and -fPIC). >> I have no error during the compilation, but a simple test: >> eigs(eye(5,5),2) craches octaves (see backtrace below). >> >> I'm using octave 3.0.5, gcc 4.2.4 on Ubuntu 8.04 (64-bit), arpack-1.0.7. >> >> Any help or insight how to debug this problem would be greatly appreciated. >> >> Thanks >> Alex >> > > > I think I found the error. If one uses the -fdefault-integer-8 option, > also LOGICALs are 8-bytes long > (http://gcc.gnu.org/onlinedocs/gfortran/Fortran-Dialect-Options.html). > In eigs-base.cc, the logical parameters that are passed to ARPACK are > only int's. I declared a macro octave_f77_bool_type which is simply > octave_idx_type (which becomes 64 bit with --enable-64). If other > fortran compiler work differently, it would be easier to modify the > code. > > If people are fine with the attached patch, I can apply it to octave-forge. > > Cheers, > Alex > eigs is in the octave core now that ARPACK is GPLed... Why not just use octave_idx_type if the fortran logical index is 8bit with --enable-64?
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