[Boost-build] Why no "--no-undefined" linker flag?

From: eracce (eracce_at_[hidden])
Date: 2007-06-10 08:54:38

I'm wondering why the "-Wl,--no-undefined" flag is not set by default so the
linker won't allow unresolved symbols from object files when building shared
libraries.
Perhaps even "Wl,--no-allow-shlib-undefined" should be used?

I'm just curious why these flags were not used. I think they are quite
necessary. Am I missing something?