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(Question) JNI and Fortran

  • 10-07-2010 2:01pm
    #1
    dr_funkenstein
    Registered Users, Registered Users 2 Posts: 162 ✭✭


    Hey

    Not sure if this is the right forum, but I've a question about the Java Native Interface.

    I'm trying to put a java interface on top of a fortran program. Doing some research, I've read that people can do by using the JNI and c code (as the intermediate).

    I've compiled the java code.. fortran code.. and c code.. but when I try to link them all together (on OS X), I get the following:

    gcc -dynamiclib -o libmycodeinc.jnilib CCode.o FortranCode.o
    Undefined symbols:
    "__gfortran_st_write", referenced from:
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    "__gfortran_transfer_integer", referenced from:
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    "__gfortran_st_write_done", referenced from:
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    _sumsquaredf_ in FortranCode.o
    ld: symbol(s) not found
    collect2: ld returned 1 exit status

    If anyone has done this before, I can forward on the code to see if its something small I'm doing wrong.

    The above worked with a different example program, just Java to C. I'm a bit lost here :confused: So any help would be appreciated!

    Thanks


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