Polyfill luaL_openlibs macro

Author: lolleko

scripts/build.sh

@@ -149,7 +149,7 @@ elif [[ "$1" == "lua-5.5.0" ]]; then
         -s WASM_ASYNC_COMPILATION=0 \
         -s EXPORTED_FUNCTIONS="[
         '_luaL_newstate', \
-        '_luaL_openlibs', \
+        '_luaL_openselectedlibs', \
         '_luaL_loadstring', \
         '_luaL_makeseed', \
         '_lua_callk', \

src/binding-factory.ts

@@ -258,11 +258,20 @@ const luaLibBindings: Record<string, luaLibBindingFactoryFunc> = {
             }
         }
     },
-    ">=5.1.0": function(luaGlue: LuaEmscriptenModule) {
+    ">=5.1.0 <5.5.0": function(luaGlue: LuaEmscriptenModule) {
         return {
             luaL_openlibs: luaGlue.cwrap("luaL_openlibs", null, ["number"]),
         }
     },
+    ">=5.5.0": function(luaGlue: LuaEmscriptenModule) {
+        // In Lua 5.5, luaL_openlibs is a macro: #define luaL_openlibs(L) luaL_openselectedlibs(L, ~0, 0)
+        const openselectedlibs = luaGlue.cwrap("luaL_openselectedlibs", null, ["number", "number", "number"]);
+        return {
+            luaL_openlibs: function(L: LuaState) {
+                openselectedlibs(L, ~0, 0);
+            }
+        }
+    },
 }
 
 /** @internal */