Re: DWARF EH for PPC

[hjl@lucon.org (H.J. Lu)]

> The static libgcc.a provided by gcc does not provide __register_frame_info
> but the same library provided by egcs does provide that symbol.

So?

> Once I removed the symbols from the various libraries provided by the
> glibc package, according to Zack's patch, the problem then seemed to
> center around libstdc++. The versions which provide that symbol allow C++
> programs compiled against the "true" 2.0.7-pre6 to run on systems with
> the "modified" 2.0.7u, but I am still not convinced even yet that we have
> it right.
> 
> I would appreciate any insites you can give me into the nature of this
> situation. Particularly, should this symbol be static linked at compile
> time from the libgcc.a, or is it supposed to be provided at link time,
> from some shared library? If so, where?
> 

It doesn't matter. Both should work. To solve this problem, you have
to do following things:

1. Don't use C++ in any gcc. That means

	A. Remove libstdc++.a, libstdc++.so, libg++.a, libg++.so
	   from /usr/lib.
	B. Remove /usr/include/g++.

2. Apply my library versioning patch to egcs 1.1.1 and install
it.

Now, your old C++ binaries will use the old C++ libraries and the
new ones will use the new C++ libraries.

-- 
H.J. Lu (hjl@gnu.org)