Re: [Xen-devel] [PATCH v2] tools: link executables with libtinfo explicitly

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Jun 02, 2015 at 03:33:26PM +0200, Daniel Kiper wrote:
> binutils 2.22 changed ld default from --copy-dt-needed-entries
> to -no-copy-dt-needed-entries. This revealed that some objects
> are linked implicitly with libtinfo and newer ld fails to build
> relevant executables.
> 
> Below is short explanation why we should not do that...
> 
> http://fedoraproject.org/wiki/UnderstandingDSOLinkChange says:
> 
> The default behaviour for ld (my note: before version 2.22) allows
> users to 'indirectly' link to required objects/libraries through
> intermediate objects/libraries. While this is convenient, it can
> also be dangerous because it makes your program's dependencies tied
> to the dependencies of other objects. If those objects ever change
> their linkages, they can break your program without any changes
> to your own code!
> 
> Please run autoconf in tools directory.
> 
> Signed-off-by: Daniel Kiper <daniel.kiper@xxxxxxxxxx>

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

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