fixup! Build Pyodide wheel

Author: HexDecimal

build_libtcod.py

@@ -158,7 +158,9 @@ def walk_sources(directory: str) -> Iterator[str]:
 
 extra_compile_args: list[str] = []
 extra_link_args: list[str] = []
-if "PYODIDE" not in os.environ:
+if "PYODIDE" in os.environ:
+    extra_compile_args.append("--use-port=sdl3")
+else:
     extra_compile_args.extend(build_sdl.extra_compile_args)
     extra_link_args.extend(build_sdl.extra_link_args)