Well I have the error now and it is a bit of an issue. First some set up
#include <lauxlib.h>
#include <lua.h>
#include <lualib.h>
int main(int argc, char **argv) {
const char *error;
lua_State *L = luaL_newstate();
luaL_openlibs(L);
if (luaL_dofile(L, "here/boot.lua") == LUA_OK) {
lua_pop(L, lua_gettop(L));
} else {
error = lua_tostring(L, -1);
puts(error);
}
lua_close(L);
return 0;
}
is compiled with
cc -o here.Linux.x86_64 boot.c -Wall -Werror -fPIC -ansi -static -O3 -DLUA_C89_NUMBERS -I/usr/include/lua5.3/ -llua5.3 -lm -ldl
Which issues only 1 warning
/usr/lib/gcc/x86_64-linux-gnu/7/../../../x86_64-linux-gnu/liblua5.3.a(loadlib.o): In function `lookforfunc':
(.text+0x596): warning: Using 'dlopen' in statically linked applications requires at runtime the shared libraries from the glibc version used for linking
There is only 1 version of lua on this computer, 5.3, and if I run the script from the shell
$ lua5.3 here/boot.lua
It works just fine, if I run the compiled version
$ ./here.Linux.x86_64
here/boot.lua:31: ./here/lib/socket/core.so: undefined symbol: lua_gettop
But the symbol is there
$ nm ./here/lib/socket/core.so | grep lua_gettop
U lua_gettop
Now my googling seems to say that luasocket is probably not being compiled in a way that exports the symbols correctly but the posts I've found are focused on lua <-> rust / python bridges and older versions of lua, 5.1
However I am installing luasocket as a dependency of luasec with luarocks so I am unaware of the correct incantation to get the magic to happen
The same C and lua scripts work just fine on on my mac (slightly different cc options because you can't do a real static compile on macos)
Any pointers for me here or should I be skipping luarocks and compiling luasocket from source (which I would prefer not to)?
