Re: Portability of -no-undefined

[Peter O'Gorman]

Noah Misch wrote:

> I would have expected identical binaries on GNU/Linux.  Indeed, binaries built
> with and without -no-undefined should be identical on _all_ platforms; without
> -no-undefined, libtool simply does not build a shared library on platforms that
> do not allow undefined symbols in shared libraries.
>
> I'll look at crafting a test case around the equivalence of -no-undefined and
> regular binaries.  I appreciate the report.

On at least Mac OS X libraries built with -no-undefined are different from 
those built without. Why should we not take advantage of any extra features 
offered by the toolchain/OS for libraries with no undefined symbols.

Also testing for equivalence of libraries on Mac OS X is not going to work 
(unless you write a special test program) as libraries often contain a 
timestamp in the mach headers.

Peter
--
Peter O'Gorman - http://www.pogma.com