1.1.2pre3 weak frame stuff

[nbecker@fred.net]

Built 1.1.2pre3 on i686-pc-linux-gnu OK.  Just one question.  In the
past, the register_frame symbol stuff has been a real annoyance
(in some versions it's in libm, in some it's not) - that is a source
of binary incompatibility.  So I wanted to verify that the
register_frame symbols in 1.1.2pre3 were indeed weak.  I couldn't find 
any such weak symbols in any libs I looked at. 

On i686-pc-linux-gnu I should see that the register_frame related
symbols are weak, right?  And what libs should I look at?