Running the Lua (5.2) C API in Ubuntu 14

Took me some time to figure this out trying out this example.

First you need to install Lua:

ubuntu> sudo apt-get install lua5.2
ubuntu> sudo apt-get install liblua5.2-dev

Then compile the source file:

ubuntu> gcc a.c -I/usr/include/lua5.2 -L/usr/lib/x86_64-linux-gnu -llua5.2

I had to make some adjustments in the source file. The adjusted source file is as follows:

	#include <stdio.h>
	#include <string.h>
	#include <lua.h>
	#include <lauxlib.h>
	#include <lualib.h>
	int main (void) {
	char buff[256];
	int error;
	lua_State *L = luaL_newstate(); /* opens Lua */
	luaL_openlibs(L);
	while (fgets(buff, sizeof(buff), stdin) != NULL) {
	error = luaL_loadbuffer(L, buff, strlen(buff), "line") ||
	lua_pcall(L, 0, 0, 0);
	if (error) {
	fprintf(stderr, "%s", lua_tostring(L, -1));
	lua_pop(L, 1); /* pop error message from the stack */
	}
	}
	lua_close(L);
	return 0;
	}

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