gnu gurus, I have fallen and can't get up ...... Can you help? > -----Original Message----- > From: Bowyer, Clifton C > Sent: Wednesday, July 27, 2005 5:44 PM > To: 'Andy Vaught' > Subject: FW: Shared Library Help > > Andy, > > Do you have any suggestions or know of someone at the gcc house that > may be able to help? > > > Thanks again for you help in the past. I really appreciate it. > > > Cliff > > -----Original Message----- > From: Bowyer, Clifton C > Sent: Wednesday, July 27, 2005 5:39 PM > To: Laik, Jeffrey E; Moul, Russell G; Walker, Randall S; Barrett, > Scott A; Drew, Sean M > Cc: Ingram, Suzanne J; Milsted, Christopher K; Siddons, Dean G; > Coons, Steven C > Subject: Shared Library Help > > All, > > I am attempting to call a fortran subroutine from a java class using > eclipse and/or the java command on linux. > > According to the documentation on the web, the following steps are the > way to do it. > > 1. compile your fortran .... > > g95 -c -fPIC -fintrinsic-extensions -fcase-upper -r8 apm_mod.f90 > apmsubs.f90 apmcalc.f90. > > 2. with c++, make an external reference to the fortran subroutine to > be called using JNIEXPORT and JNICALL. > > c++ -fPIC -D _FORTRAN_BUILD_ -shared -o libAPMCalcJava.so -L > /usr/local/g95/lib/gcc-lib/i686-pc-linux-gnu/4.0.0 -l f95 apm_mod.o > apmsubs.o apmcalc.o APMCalcJava.cpp > > 3. run java > > Java -classpath classes APMCalc.APMCalcJava > > When this is done, I get the error > > [bowyerc@cheyenne ~/EA-Proto/APM]$ java -classpath classes > APMCalc.APMCalcJava > Exception in thread "main" java.lang.UnsatisfiedLinkError: > /home/bowyerc/Fortran_Files/APM/libAPMCalcJava.so: > /home/bowyerc/Fortran_Files/APM/libAPMCalcJava.so: undefined symbol: > _g95_section_info > at java.lang.ClassLoader$NativeLibrary.load(Native Method) > at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1560) > at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1485) > at java.lang.Runtime.loadLibrary0(Runtime.java:788) > at java.lang.System.loadLibrary(System.java:834) > at APMCalc.APMCalcJava.<clinit>(APMCalcJava.java:79) > > The first time I got this error, it was with the symbol > _g95-nint_2_r8_. This is why I included the -L and -l options in step > 2. What is even stranger, when you look at the library specified in > step 2, you do find the _g95_section_info symbol? > > Does anyone have any suggestions or know of someone to pass this on > to? > > Any help would be appreciated. > > Jeff, Scott, could you pass this on to the rest of the IT group? > > Thanks, > > Cliff
