Re: [cdt-dev] -fPIC option for Shared Libraries (64-bit Linux)

["Andrey Tretyakov" <andrromeda@xxxxxxxxx>]

On Mon, 08 Dec 2008 20:12:08 +0300, Vladimir Prus  
<vladimir@xxxxxxxxxxxxxxxx> wrote:

> On Monday 08 December 2008 19:42:19 Andrey Tretyakov wrote:
> > Hi!
> >
> > Can somebody test the building shared libraries from Eclipse without  
> > -fPIC
> > parameter on any Linux x86_64?
> > On my machine (openSUSE 11.0 x86_64) gcc 4.3 can't build shared  
> > libraries:
> >
> > make all
> > Building file: ../testlib.c
> > Invoking: GCC C Compiler
> > gcc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"testlib.d"
> > -MT"testlib.d"
> > -o"testlib.o" "../testlib.c"
> > Finished building: ../testlib.c
> >
> > Building target: libtestlib.so
> > Invoking: GCC C Linker
> > gcc -shared -o"libtestlib.so"  ./testlib.o
> > /usr/lib64/gcc/x86_64-suse-linux/4.3/../../../../x86_64-suse-linux/bin/ld:
> > ./testlib.o: relocation R_X86_64_32 against `a local symbol' can not be
> > used
> > when making a shared object; recompile with -fPIC
>
> This is not CDT issue -- that's how gcc behaves on 64-bit flatforms --  
> you need
> to compile everything that goes into a shared library with -fPIC.
>
> - Volodya

Yes, therefore I suggest to add '-fPIC' option to GCC Toolchain (please,  
see the attachment to that bug).

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