[gdal-dev] Un-vendoring a number of third-party libraries?

[Even Rouault]

Andrew,
> I don't see a problem but libpng also uses zlib. Do we need to
> do anything to ensure that gdal uses the same zlib as libpng ?

It is not the role to GDAL to check this (there's no portable way of 
doing that AFAIK), but it is obviously the responsibility of the user to 
make sure that all libraries (libpng, libcurl, libtiff, etc. and GDAL) 
that link to zlib link to the same one. This is basic dependency hygiene.

Even

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