Re: MSW DLLs support in libtool

[Bob Friesenhahn]

On Tue, 9 Feb 2016, Nick Bowler wrote:
> In retrospect, the default (assume undefined symbols are possible) was
> probably a bad choice, because undefined symbols in libraries are rarely
> used.  Thus, almost all libraries need to specify -no-undefined.  But
> this can't be changed now without causing regressions.

This is not really true.  For example, the linker on GNU Linux 
implicility supplies libraries at link time (because of how they were 
built) and libtool has no way to know about library dependencies which 
are not listed in .la files.

Some GNU Linux distributions intentionally modify libtool such that 
dependency libraries are not included and they delete all .la files.

The reason for intentionally losing dependency information is because 
the specific dependencies cause packaging problems.

Bob
--
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/