Calling a Lua script from C: errors

Question

I'm new at Lua and writing bindings in general. At the moment I'm just trying to compile the first example found here (with the functions updated to Lua 5.1).

#include <stdio.h>

#include "lua.h"
#include "lualib.h"
#include "lauxlib.h"

/* the Lua interpreter */
lua_State* L;

int main ( int argc, char *argv[] )
{
    /* initialize Lua */
    L = luaL_newstate();

    /* load various Lua libraries */
    luaL_openlibs(L);
        luaopen_table(L);
        luaopen_io(L);
        luaopen_string(L);
        luaopen_math(L);

    /* cleanup Lua */
    lua_close(L);

    return 0;
}

When I compile using gcc -o init init.c -Wall -I/usr/local/include -L/usr/local/lib -llua -lliblua I get the following error:

.../../i486-pc-linux-gnu/bin/ld: cannot find -lliblua
collect2: ld returned 1 exit status

The file liblua.a is in /usr/local/lib, but for some reason the compiler can't find it? What am I doing wrong?

According to lua.org/pil/24.1.html you shouldn't be calling luaopen_table, _io, _string, etc. — Cogwheel

Judge Maygarden Judge Maygarden · Accepted Answer · 2010-06-21T21:57:50

The liblua.a file is included by the -llua parameter. Specifying -lliblua attempts to find a libliblua.a file that does not exist. So, simply remove -lliblua from your build command.

Calling a Lua script from C: errors

2 Answers