Re: Compilation problems on Ubuntu 64-bit

[Marcus Clyne <maccaday at gmail dot com>]

Hi,

I've got it to work, by adding a 'main' function to my shared object code.

I don't understand why I need to do this though.  I didn't think that 
'main' functions were required in shared objects, and when I compile 
using the shell, it compiles ok without one.  When I used the same code 
on my old system, it worked without needing to add one, even in the exec 
function executions.

Could this be a bug in GCC?  The version I'm using currently is 4.3.3.

Alternatively, is there another option I should add when using exec 
functions to call GCC to prevent the need for adding 'main' functions?

Thanks,

Marcus.


Marcus Clyne wrote:
> I've tried adding all the elements in the environment, but it still 
> doesn't work. :-(
>
> Is there any reason why gcc/ld called from exec functions would have 
> different options set (other than those relating to the environment) 
> compared to being called from within a shell?
>
> Marcus.
>
>
> Ian Lance Taylor wrote:
> > Marcus Clyne <maccaday@gmail.com> writes:
> >
> >  
> > > I think I need to add something to the environment, but am not sure 
> > > what.
> > >     
> >
> > We don't know either.  I recommend running printenv to see what you have
> > in your environment, adding all of it to your execve call, verify that
> > it works, and then remove items one by one until it fails.
> >
> > Ian
> >
> >