[Trilinos-Users] Building with -fPIC flag
Bill Spotz
wfspotz at sandia.gov
Fri Jul 29 12:27:50 MDT 2011
Chris,
Position independent code is associate with shared libraries. I believe that if you configure with
-D BUILD_SHARED_LIBS:BOOL=ON
then all of the libraries should be compiled properly for you.
-Bill
On Jul 29, 2011, at 11:14 AM, Christopher Parmer wrote:
> Hi All,
>
> I'm linking my trilinos project with matlab and so I (er.. matlab mex files) need the libraries to be 'position independent' or compiled with the -fPIC flag.
>
> I tried rebuilding trilinos (via ccmake, make, make install) with -fPIC in CMAKE_CXX_FLAGS, (and later I added it to CMAKE_C_FLAGS, CMAKE_EXE_LINKER_FLAGS), but I get the same error with respect to the libaztecoo and a few other packages. However, my simple examples with Epetra CrsMatrices now work.
>
> Am I missing a flag somewhere? Or are some libraries not written to be 'position independent'?
>
> Sorry if this is a simple question - I'm very new to linking and building large packages.
>
> Thanks,
>
> Chris
>
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** Bill Spotz **
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