Lorenzo Pesce wrote: > > On Mar 28, 2008, at 12:45 PM, Andrew Haley wrote: > >> Lorenzo Pesce wrote: >>> Thanks a lot for your kinds replied Andrew, >>> >>>>> However, when I get to X86 (whether Intel or AMD) it does not work >>>>> anymore. I can compile the files, and build the static library >>>>> libroc.a. >>>>> It works fine and I can move it from AMD to intel (not the other way >>>>> around, but I assume it is a problem with my installation). However, >>>>> when I try to build a dynamically linked library, gcc complains that >>>>> "Relocation R_X86_64_32 against 'a local symbol' can not be used >>>>> when making a share object; recompile with -fPIC" >>>>> then it tells me it can't read symbols .o because it is a bad value. >>>> >>>> You need to compile everything that goes into a dynamically linked >>>> library with -fPIC. >>> >>> I have to admit my ignorance on compilers building, but once i >>> download unpack and so on the gcc compiler package, I can't >>> figure out in which of the hundreds of lines of the various makefiles >>> or configuration files I should put the -fPIC flag. >> >> Don't mess with gcc's makefiles. >> gcc already builds all of its files correctly. >> >> When you use gcc to build *your* libraries, *you* must compile everything >> with -fPIC. > > I already do that. The problem is with libgfortran.* not with my libraries! Now you tell me. Have a look at the gcc build log to see if it really did compile some of the libgfortran sources without -fPIC. > Java seems to need the object files from libgfortran for the JNI > libraries to work properly No it doesn't. > so I need > libgfortran to be compiled with -fPIC to link them into the jni library. > My libraries have always been built with -fPIC, > it is libgfortran that is breaking on the x86_64, not my libraries. > > Does it make sense? No. Java does not depend on libgfortran, or at least it certainly doesn't on any system I have ever seem. If you find somewhere it does, please make a test case that we can try. Andrew.