[support #103719] catching unresolved symbols at link time, and template instantiation

[anonymous]

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[support #103719] Full Item Snapshot:

URL: <http://savannah.gnu.org/support/?func=detailitem&item_id=103719>
Project: GNU Libtool
Submitted by: 0
On: Thu 12/30/2004 at 14:54

Category:  None
Priority:  5 - Normal
Severity:  3 - Ordinary
Resolution:  None
Privacy:  Public
Assigned to:  None
Originator Email:  address@hidden
Status:  Open


Summary:  catching unresolved symbols at link time, and template instantiation

Original Submission:  I'm converting to the use of libtool for my C++ libraries.
These libraries tend to have inter-library dependencies.  Libtool does not 
catch when my library has unresolved symbols due to a missing dependency (or 
any other reason).
In my previous build system, I used a "prelink stage" for checking for 
unresolved symbols and instantiating templates.
For g++, this is about as simple as replacing the '-shared' option with the 
following, as a pre-link before the real link:

-Wl,-defsym,main=0x0,-defsym,MAIN__=0x0

Since it's treated as an executable rather than a library, complete symbol 
checking and template instantiation occur.

I would like to see libtool provide a similar capability, even if only when g++ 
is used.  Without this, it is very difficult to determine missing dependencies 
in a library.

I am currently using libtool 1.5.2












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