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

[Vladimir Prus <vladimir@xxxxxxxxxxxxxxxx>]

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