Problems with Lua in Vim

[Bernd Eggink <monoped@...>]

Hi all,
I compiled Vim with Lua support and am quite happy now that I can write 
Vim procedures in my favourite language. Most things work, but there is 
one problem I couldn't solve. Whenever I try to require a module (after 
setting package.path and package.cpath right), I get an error message 
like this:

 error loading module 'posix_c' from file '/usr/lib/lua/5.2/posix_c.so':
 /usr/lib/lua/5.2/posix_c.so: undefined symbol: lua_gettop

It seems that Lua has found the required module, but the module can't 
access liblua.a. No idea why. Posix is just an example, the same happens 
with other modules as well.

Any ideas what could be the reason and how to get around this?

- Bernd

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