Worked around some new Makefile issues.

quantum/process_keycode/process_tap_dance.c

@@ -16,6 +16,8 @@
 #include "quantum.h"
 #include "action_tapping.h"
 
+uint8_t get_oneshot_mods(void);
+
 static uint16_t last_td;
 static int8_t highest_td = -1;
 

quantum/process_keycode/process_unicode.c

@@ -16,6 +16,7 @@
 #include "process_unicode.h"
 #include "action_util.h"
 
+static uint8_t first_flag = 0;
 
 bool process_unicode(uint16_t keycode, keyrecord_t *record) {
   if (keycode > QK_UNICODE && record->event.pressed) {

quantum/process_keycode/process_unicode_common.c

@@ -17,7 +17,6 @@
 #include "process_unicode_common.h"
 
 static uint8_t input_mode;
-static uint8_t first_flag = 0;
 uint8_t mods;
 
 void set_unicode_input_mode(uint8_t os_target)