[Bug 1424602] Re: Unable do load lua-rrd, no rrd.so exists

[Daniel Silverstone]

The fundamental misunderstanding here is in thinking of the rrd.so as a
shared library -- it is not a shared library, it is a module.

The ABI which the object exports is irrelevant because in reality it
cannot change that ABI without failing to be loaded by Lua 5.1.  The
presence of the 5.1 in the file path encodes that ABI dependency.

Lua dynamically loads the modules in question at runtime in general,
though it is possible to statically (or dynamically) link them to an
application which contains an interpreter, that simply isn't done in
general.

Consider how dh_lua splits the contents of the foo and foo-dev packages
(use lua-rex-pcre and lua-rex-pcre-dev as examples if you wish) and try
to follow that approach.

I hope this helps to clarify the issue and helps the maintainer of
rrdtool's source fix the lua rrd package appropriately.

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Title:
  Unable do load lua-rrd, no rrd.so exists

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