[v3] symbol versioning layout and configure clarifications

[Benjamin Kosnik]

This is a large patch that moves around the abi baseline files, into a
deeper nesting of config/abi. The goal is to try and move all the
configure-related abi bits into config/abi, and give clear definition
to the existing --enable-symvers choices.

This does not change the semantics of existing configs.

tested x86/linux

-benjamin

-------------- next part --------------
A non-text attachment was scrubbed...
Name: p.20051218-4.bz2
Type: application/x-bzip2
Size: 165700 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/libstdc++/attachments/20051218/e1e11024/attachment.bz2>