7 files changed, 39 insertions, 52 deletions
diff --git a/keyboards/hhkb/ansi/post_rules.mk b/keyboards/hhkb/ansi/post_rules.mk
new file mode 100644
index 0000000000..bc6ad5cd4c
--- /dev/null
+++ b/keyboards/hhkb/ansi/post_rules.mk
@@ -0,0 +1,18 @@
+ifeq ($(strip $(HHKB_RN42_ENABLE)), yes)
+
+OPT_DEFS += -DHHKB_RN42_ENABLE
+
+# Support for the RN42 Bluetooth module. This is the BT module in Hasu's BT
+# HHKB Alt controller.
+RN42_DIR = ../rn42
+
+SRC +=  serial_uart.c \
+	../rn42/suart.S \
+	../rn42/rn42.c \
+	../rn42/rn42_task.c \
+	../rn42/battery.c \
+	../rn42/main.c
+
+VPATH += $(RN42_DIR)
+
+endif
diff --git a/keyboards/hhkb/ansi/rules.mk b/keyboards/hhkb/ansi/rules.mk
index 3f60f47d7b..c59ee34f92 100644
--- a/keyboards/hhkb/ansi/rules.mk
+++ b/keyboards/hhkb/ansi/rules.mk
@@ -32,26 +32,6 @@ MIDI_ENABLE = no              # MIDI support
 # project specific files
 SRC = matrix.c
 
-ifeq ($(strip $(HHKB_RN42_ENABLE)), yes)
-
-OPT_DEFS += -DHHKB_RN42_ENABLE
-
-# Support for the RN42 Bluetooth module. This is the BT module in Hasu's BT
-# HHKB Alt controller.
-RN42_DIR = ../rn42
-
-SRC +=  serial_uart.c \
-	../rn42/suart.S \
-	../rn42/rn42.c \
-	../rn42/rn42_task.c \
-	../rn42/battery.c \
-	../rn42/main.c
-
-VPATH += $(RN42_DIR)
-
-endif
-
-
 # debug-on: EXTRAFLAGS += -DDEBUG -DDEBUG_ACTION
 # debug-on: all
 
diff --git a/keyboards/hhkb/jp/post_rules.mk b/keyboards/hhkb/jp/post_rules.mk
new file mode 100644
index 0000000000..bc6ad5cd4c
--- /dev/null
+++ b/keyboards/hhkb/jp/post_rules.mk
@@ -0,0 +1,18 @@
+ifeq ($(strip $(HHKB_RN42_ENABLE)), yes)
+
+OPT_DEFS += -DHHKB_RN42_ENABLE
+
+# Support for the RN42 Bluetooth module. This is the BT module in Hasu's BT
+# HHKB Alt controller.
+RN42_DIR = ../rn42
+
+SRC +=  serial_uart.c \
+	../rn42/suart.S \
+	../rn42/rn42.c \
+	../rn42/rn42_task.c \
+	../rn42/battery.c \
+	../rn42/main.c
+
+VPATH += $(RN42_DIR)
+
+endif
diff --git a/keyboards/hhkb/jp/rules.mk b/keyboards/hhkb/jp/rules.mk
index dda7ceb078..3c66ff5002 100644
--- a/keyboards/hhkb/jp/rules.mk
+++ b/keyboards/hhkb/jp/rules.mk
@@ -32,26 +32,6 @@ MIDI_ENABLE = no              # MIDI support
 # project specific files
 SRC = matrix.c
 
-ifeq ($(strip $(HHKB_RN42_ENABLE)), yes)
-
-OPT_DEFS += -DHHKB_RN42_ENABLE
-
-# Support for the RN42 Bluetooth module. This is the BT module in Hasu's BT
-# HHKB Alt controller.
-RN42_DIR = ../rn42
-
-SRC +=  serial_uart.c \
-	../rn42/suart.S \
-	../rn42/rn42.c \
-	../rn42/rn42_task.c \
-	../rn42/battery.c \
-	../rn42/main.c
-
-VPATH += $(RN42_DIR)
-
-endif
-
-
 # debug-on: EXTRAFLAGS += -DDEBUG -DDEBUG_ACTION
 # debug-on: all
 
diff --git a/keyboards/hhkb/rn42/battery.h b/keyboards/hhkb/rn42/battery.h
index 180d4dcfaa..c7f96d09a3 100644
--- a/keyboards/hhkb/rn42/battery.h
+++ b/keyboards/hhkb/rn42/battery.h
@@ -1,5 +1,4 @@
-#ifndef POWER_H
-#define POWER_H
+#pragma once
 
 #include <stdint.h>
 #include <stdbool.h>
@@ -31,5 +30,3 @@ battery_status_t battery_status(void);
 // ADC offset:16, resolution:5mV
 #define BATTERY_ADC_OFFSET              16
 #define BATTERY_ADC_RESOLUTION          5
-
-#endif
diff --git a/keyboards/hhkb/rn42/rn42.h b/keyboards/hhkb/rn42/rn42.h
index dee214cc84..76bcef99bb 100644
--- a/keyboards/hhkb/rn42/rn42.h
+++ b/keyboards/hhkb/rn42/rn42.h
@@ -1,5 +1,4 @@
-#ifndef RN42_H
-#define RN42_H
+#pragma once
 
 #include <stdbool.h>
 #include "host_driver.h"
@@ -26,5 +25,3 @@ void rn42_send_str(const char *str);
 void rn42_print_response(void);
 #define SEND_STR(str)       rn42_send_str(PSTR(str))
 #define SEND_COMMAND(cmd)   rn42_send_command(PSTR(cmd))
-
-#endif
diff --git a/keyboards/hhkb/rn42/rn42_task.h b/keyboards/hhkb/rn42/rn42_task.h
index ee00669ee5..05e80e9be2 100644
--- a/keyboards/hhkb/rn42/rn42_task.h
+++ b/keyboards/hhkb/rn42/rn42_task.h
@@ -1,5 +1,4 @@
-#ifndef RN42_TASK_H
-#define RN42_TASK_H
+#pragma once
 
 #include <stdbool.h>
 #include "rn42.h"
@@ -10,5 +9,3 @@ bool rn42_nkro_last;
 
 void rn42_task_init(void);
 void rn42_task(void);
-
-#endif