🔨 Port libsdl2_net required for macOS simulator

Marlin/src/gcode/gcode.cpp

  * G-code "macros" to be called from within other G-code handlers.
  */
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wstringop-truncation"
+
 void GcodeSuite::process_subcommands_now(FSTR_P fgcode) {
   PGM_P pgcode = FTOP(fgcode);
   char * const saved_cmd = parser.command_ptr;        // Save the parser state
   parser.parse(saved_cmd);                            // Restore the parser state
 }
 
+#pragma GCC diagnostic pop
+
 void GcodeSuite::process_subcommands_now(char * gcode) {
   char * const saved_cmd = parser.command_ptr;        // Save the parser state
   for (;;) {

ini/native.ini

 #
 # Simulator for macOS (MacPorts)
 #
-#  sudo port install gcc10 gdb glm libsdl2 freetype
+#  sudo port install gcc10 gdb glm libsdl2 libsdl2_net freetype
 #  sudo port install ld64 @3_3 +ld64_xcode
-#  sudo port uninstall ld64 ld64-latest
+#
 #  cd /opt/local/bin
 #  sudo rm -f gcc g++ cc
-#  sudo ln gcc-mp-10 gcc ; sudo ln g++-mp-10 g++ ; sudo ln g++ cc
-#  cd -
+#  sudo ln -s gcc-mp-10 gcc ; sudo ln -s g++-mp-10 g++ ; sudo ln -s g++ cc
+# This step may be obsolete:
+#  sudo port uninstall ld64 ld64-latest
+#
+# cd -
 #
 # Use 'sudo port install mesa' to get a <GL/gl.h> if no Xcode is installed.
 # If Xcode is installed be sure to run `xcode-select --install` first.