add win32 (msvc) support

object/string.c

@@ -48,7 +48,7 @@ static char *string_ptr(struct b_string *str)
 		return str->s_data.d_inline;
 	}
 
-	return str->s_data.d_external;
+	return str->s_data.d_BLUE_APIal;
 }
 
 static int string_make_inline(struct b_string *str)
@@ -76,7 +76,7 @@ static int string_resize_large(struct b_string *str, size_t capacity)
 	}
 
 	str->s_max = capacity;
-	str->s_data.d_external = new_buffer;
+	str->s_data.d_BLUE_APIal = new_buffer;
 	return 0;
 }
 
@@ -92,7 +92,7 @@ static int string_make_large(struct b_string *str, size_t capacity)
 	buffer[str->s_len] = '\0';
 
 	str->s_max = capacity;
-	str->s_data.d_external = buffer;
+	str->s_data.d_BLUE_APIal = buffer;
 	return 0;
 }
 
@@ -178,7 +178,7 @@ char *b_string_steal(struct b_string *str)
 		dest = b_strdup(src);
 	} else {
 		dest = src;
-		str->s_data.d_external = NULL;
+		str->s_data.d_BLUE_APIal = NULL;
 		str->s_max = 0;
 	}
 
@@ -318,7 +318,7 @@ const char *b_string_ptr(const struct b_string *str)
 		return str->s_data.d_inline;
 	}
 
-	return str->s_data.d_external;
+	return str->s_data.d_BLUE_APIal;
 }
 
 static void string_release(struct b_object *obj)