Linking object files created by different GCC compiler versions

[Cedric Roux]

On 04/28/2011 09:24 AM, Schmidt, Steffen wrote:
> Hello,
>
> I'm trying to link object files originally created by different GCC versions together into one elf file.
> Some object files were created by GCC 4.3.2, others by GCC 4.6.0. Unfortunately I get errors during final linking, having unresolved symbols. This seems to be due to the fact, that the used compiler versions seem to create different symbols for the same function/method.
>
> One example:
> We implement the new operators by our own:
> void * operator new(size_t size);
> The symbol created by GCC 4.3.2 is _Znwm
> The symbol created by GCC 4.6.0 is _Znwj

/home/cro> c++filt _Znwm
operator new(unsigned long)
/home/cro> c++filt _Znwj
operator new(unsigned int)

might be helpful...