Re: Patch: install libgtkpeer.so and libjawt.so in versioned library directory

[Bryce McKinlay <mckinlay at redhat dot com>]

Thomas Fitzsimmons wrote:
> > Maybe, but you simply cannot assume that argv[0] contains the path to
> > the current executable.  It's a fragile technique that runs the risk
> > of horrors like this one.  /proc/self/exe works on Linux.
>
> OK, I'll re-add the GIJ_EXECUTABLE logic if Bryce agrees.

Well, I agree that argv[0] can't be used. However, using a hardcoded 
path means that:

- gij won't work from the testsuite, or the wrong gij will be tested
- gij will break if the user moves an installed libgcj tree

On Linux/Solaris/etc, we can use readlink("/proc/self/exe") to get the 
definitive path to the binary. On platforms where this is not available, 
we could just fall back to not doing the exec, and leave a fixme for 
those platforms to implement their equivalent if needed.

Bryce