Removing duplicate occurences from dependency_libs

[Martin Baulig]

Hi,

somewhere between libtool 1.3.x and 1.4, you did the following:

====
1999-12-15  Thomas Tanner  <address@hidden>

        * ltmain.in: don't remove multiple occurences from dependency_libs
          of a library, otherwise many dependencies would get lost

====

If you have a "complicated" dependency setup, this will slow down linking
in a very extreme way (it is more than 5 times slower for me) because I get
libraries like -lm or -ldl listed over 30 times in the dependency_libs.

Is it possible to add an argument to libtool to get back the old behavior,
for instance -unique-dependency-libs ?

Here's a patch for this:

diff
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-- 
Martin Baulig
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address@hidden (work)