Yan Wu wrote:
Hi.
I am compiling Octave 3.0 on Opteron. I have included Suitesparse in the compilation with the following flags:
--enable-shared CPPFLAGS='-I/scratch/octave/include -I/scratch/octave/include/suitesparse' LDFLAGS='-L/scratch/octave/lib' --with-blas='-L/scratch/octave/lib -lgoto -lpthread'
However, the following error was generated during make:
/usr/bin/ld: /scratch/octave/lib/libcholmod.a(cholmod_common.o): relocation R_X86_64_32S against `malloc' can not be used when making a shared object; recompile with -fPIC
/scratch/octave/lib/libcholmod.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
make[2]: *** [liboctave.so] Error 1
make[2]: Leaving directory `/HOME01/WORK/work01/octave/octave-3.0.0/liboctave'
Does anyone know why?
Thank you,
Yan
Perhaps recompile with the -fPIC flag as suggested in the error message.... A static library compile without this can not be linked to a shared object. Or you could go the whole hog and compile suitesparse as a set of shared libraries.
What OS are you building on? There are a number of RPM and DEB releases of suitesparse out there that you might use to get this working. Even if your OS doesn't have suitesparse itself you could still take the source package from another distribution and rebuild it as suitesparse's only dependency is on LAPACK/BLAS that is available basically everywhere.
D.
