Re: swig 1.3.31 / lua / -external-runtime multiple defines

by mark gossage :: Rate this Message:

Hi,

I'm using swig 1.3.31 to generate Lua wrappers for my application. I want to
use the runtime in some other areas of my application so I used the
'-external-runtime' option to generate an appropriate header. However, when I
compile my wrapper I get multiple defines for everything 'runtime' related.
E.g.:

swig_lua_runtime.h(334) : error C2011: 'swig_type_info' : 'struct' type
redefinition
api_luawrap.cpp(324) : see declaration of 'swig_type_info'
swig_lua_runtime.h(344) : error C2011: 'swig_cast_info' : 'struct' type
redefinition
api_luawrap.cpp(334) : see declaration of 'swig_cast_info'
swig_lua_runtime.h(372) : error C2084: function 'int SWIG_TypeNameComp(const
char *,const char *,const char *,const char *)' already has a body
api_luawrap.cpp(361) : see previous definition of 'SWIG_TypeNameComp'
...

I tried the -noruntime option but that's apparently been deprecated and had
no effect on this problem.

What do I need to get this working?

Thanks,
-Aaron

Hello Aaron,
Do you have a #include "swigluarun.h" in your wrapper file?
You should only be #including it into other code which needs to call the swig runtime function.

You should refer to Examples/Lua/embed* on how to embed an interpreter and call into the module.
Regards,
Mark

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