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- Subject: Re: Undefined symbol: Lua_insert in core.so
- From: Duck <duck@...>
- Date: Tue, 6 Nov 2007 07:30:14 +1100 (EST)
I don't know what you mean with
export the symbols form the executable.
You need to pass the -E option to the linker when you create your
statically-linked Lua binary. (If linking using the 'gcc' command, then
use '-Wl,-E' to pass the -E onwards from gcc to ld.)
This tells the linker to export the symbols in the static binary. This
means that .so files you load later can link back to functions and
variables in the original binary...
If you don't export the lua_ and luaL_ symbols from the static binary,
then the shared libraries you load later won't be able to find the Lua API
functions (even though they are already in memory) and you will get the
errors you have here.
Check out the Makefile which comes with Lua itself for advice on the
compile and link options you need.