Removing multiple copies of ltmain.sh

[Sam Varshavchik]

I have about a dozen libraries that get built with libtool. They're all 
convenience libraries but they can be developed individually, so they have 
their own configure script, as well as as all the libtool-related scripts.

These libraries are included in five major projects, in various 
combinations. So when the major projects get packaged, the tarball gets 
multiple copies of ltmain.sh, one in each library subdirectory. Although 
gzip helps here, it's still quite a mouthful.

Can anyone suggest a clean way to eliminate all those copies of ltmain.sh. I 
can always hack up a hook that replaces them with hardlinks, before the 
tarball gets created, but perhaps there's a better way. The catch here is 
that each component library has its own configuration needs, so it needs its 
own configure script, and that's where the libtool dependency comes from. 
It's more maintainable to have each library have its own self-contained 
configure script, then to try to merge, and maintain all those bits in the 
main project's main configure script. So, I'd like to keep all the libraries 
with their own self-contained configure script, which get recursively 
invoked by the main projects' top level configure, but optimize away the 
multiple copies of ltmain.sh.

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