luabind - My lua script load .so library, how can I write the host program with Lua 5.2? -

i searched , tried days. problem this:

i wrote script load shared library locker.so, runs lua interpretor, can not write out correct host program.

my lua script load_so.lua simple:

locker = require("locker") print(type(locker)) k, v in pairs(locker)     print(k, v) end 

my host program is:

int main(int argc, const char *argv[]) {     lua_state * l = lual_newstate();     lual_openlibs(l);      if (lual_dofile(l, "load_so.lua") != 0) {         fprintf(stderr, "lual_dofile error: %s\n", lua_tostring(l, -1));         lua_pop(l, 1);     }     lua_close(l);     return 0; } 

when run host program, error print out:

lual_dofile error: error loading module 'locker' file './locker.so':     ./locker.so: undefined symbol: lua_pushstring 

and locker.c:

static int elock_get(lua_state * l) {...}  static int elock_set(lua_state * l) {...}  static const struct lual_reg lockerlib[] = {     {"get", elock_get},     {"set", elock_set},     {null, null} };  int luaopen_locker(lua_state *l) {     //lual_newlib(l, lockerlib);     //lua_pushvalue(l, -1);     //lua_setglobal(l, locker_libname);     //set_info(l);     lual_newlibtable(l, lockerlib);     lual_setfuncs(l, lockerlib, 0);     return 1; } 

most articles, books, questions shows how in lua 5.1, , yes, program runs correctly in lua 5.1. how can make support lua 5.2, , why?

p.s: don't want load library in c host program lual_requiref(l, "locker", luaopen_locker, 1), because don't know .so library load in lua script.

thanks.

in linux, if you're linking liblua.a statically main program, need use -wl,-e when linking export lua api symbols; how standard command line interpreter built.