unix/mpconfigport_minimal.h: Clearly mark where user-define config ends.

TODO: Do the same for other config files.

unix/mpconfigport_minimal.h

@@ -38,6 +38,7 @@
 #define MICROPY_ENABLE_SOURCE_LINE  (0)
 #define MICROPY_ERROR_REPORTING     (MICROPY_ERROR_REPORTING_TERSE)
 #define MICROPY_WARNINGS            (0)
+#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF   (0)
 #define MICROPY_FLOAT_IMPL          (MICROPY_FLOAT_IMPL_NONE)
 #define MICROPY_LONGINT_IMPL        (MICROPY_LONGINT_IMPL_NONE)
 #define MICROPY_STREAMS_NON_BLOCK   (0)
@@ -83,6 +84,18 @@
 #define MICROPY_PY_UHASHLIB         (0)
 #define MICROPY_PY_UBINASCII        (0)
 
+extern const struct _mp_obj_module_t mp_module_os;
+
+#define MICROPY_PORT_BUILTIN_MODULES \
+    { MP_OBJ_NEW_QSTR(MP_QSTR_uos), (mp_obj_t)&mp_module_os }, \
+
+#define MICROPY_PORT_ROOT_POINTERS \
+    mp_obj_t keyboard_interrupt_obj;
+
+//////////////////////////////////////////
+// Do not change anything beyond this line
+//////////////////////////////////////////
+
 // Define to 1 to use undertested inefficient GC helper implementation
 // (if more efficient arch-specific one is not available).
 #ifndef MICROPY_GCREGS_SETJMP
@@ -93,13 +106,6 @@
     #endif
 #endif
 
-#define MICROPY_ENABLE_EMERGENCY_EXCEPTION_BUF   (0)
-
-extern const struct _mp_obj_module_t mp_module_os;
-
-#define MICROPY_PORT_BUILTIN_MODULES \
-    { MP_OBJ_NEW_QSTR(MP_QSTR_uos), (mp_obj_t)&mp_module_os }, \
-
 // type definitions for the specific machine
 
 #ifdef __LP64__
@@ -124,9 +130,6 @@ typedef long mp_off_t;
 typedef void *machine_ptr_t; // must be of pointer size
 typedef const void *machine_const_ptr_t; // must be of pointer size
 
-#define MICROPY_PORT_ROOT_POINTERS \
-    mp_obj_t keyboard_interrupt_obj;
-
 // We need to provide a declaration/definition of alloca()
 #ifdef __FreeBSD__
 #include <stdlib.h>