Fixed the build break of helix/rev1:OLED_sample caused by PR #4462. (#4874)

[qmk_firmware.git] / common_features.mk

diff --git a/common_features.mk b/common_features.mk
index 97febe2e77e90a62b9dc07baf55e78db291add71..8c3361732cd018691be945344770977308947396 100644 (file)
--- a/common_features.mk
+++ b/common_features.mk
@@ -254,6 +254,7 @@ QUANTUM_SRC:= \
     $(QUANTUM_DIR)/keymap_common.c \
     $(QUANTUM_DIR)/keycode_config.c
 
+# Include the standard or split matrix code if needed
 ifneq ($(strip $(CUSTOM_MATRIX)), yes)
     ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
         QUANTUM_SRC += $(QUANTUM_DIR)/split_common/matrix.c
@@ -262,15 +263,25 @@ ifneq ($(strip $(CUSTOM_MATRIX)), yes)
     endif
 endif
 
+# Include the standard debounce code if needed
+ifneq ($(strip $(CUSTOM_DEBOUNCE)), yes)
+    QUANTUM_SRC += $(QUANTUM_DIR)/debounce.c
+endif
+
 ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
-    SERIAL_BACKWARD_COMPAT := $(wildcard $(QUANTUM_DIR)/split_common/serial_backward_compatibility.h)
-    ifneq ($(SERIAL_BACKWARD_COMPAT),)
-      CONFIG_H += $(SERIAL_BACKWARD_COMPAT)
-      # $(info CONFIG_H=$(CONFIG_H))
-    endif
     OPT_DEFS += -DSPLIT_KEYBOARD
+
+    # Include files used by all split keyboards
     QUANTUM_SRC += $(QUANTUM_DIR)/split_common/split_flags.c \
-                $(QUANTUM_DIR)/split_common/split_util.c \
-                $(QUANTUM_DIR)/split_common/i2c.c \
-                $(QUANTUM_DIR)/split_common/serial.c
+                   $(QUANTUM_DIR)/split_common/split_util.c
+
+    # Determine which (if any) transport files are required
+    ifneq ($(strip $(SPLIT_TRANSPORT)), custom)
+        QUANTUM_SRC += $(QUANTUM_DIR)/split_common/transport.c
+        # Functions added via QUANTUM_LIB_SRC are only included in the final binary if they're called.
+        # Unused functions are pruned away, which is why we can add both drivers here without bloat.
+        QUANTUM_LIB_SRC += $(QUANTUM_DIR)/split_common/i2c.c \
+                           $(QUANTUM_DIR)/split_common/serial.c
+    endif
+    COMMON_VPATH += $(QUANTUM_PATH)/split_common
 endif