Makefile: Add COMPRESS variable to control if compression should be p…

…erformed

Makefile.common

@@ -21,6 +21,14 @@ else
 	EXTFLASH_SIZE ?= 1048576
 endif
 
+# Compress supported ROMs by default. Set to 0 to disable.
+COMPRESS ?= 1
+ifeq ($(COMPRESS),1)
+	COMPRESS_PARAM := --compress
+else
+	COMPRESS_PARAM := --no-compress
+endif
+
 PYTHON3 ?= /usr/bin/env python3
 
 #######################################
@@ -294,7 +302,7 @@ $(BUILD_DIR)/rom_files.txt: FORCE | $(BUILD_DIR)
 
 $(BUILD_DIR)/roms.a: $(BUILD_DIR)/rom_files.txt parse_roms.py
 	$(V)$(ECHO) [ PYTHON3 ] $(notdir $<)
-	$(V)$(PYTHON3) parse_roms.py --flash-size $(EXTFLASH_SIZE)
+	$(V)$(PYTHON3) parse_roms.py --flash-size $(EXTFLASH_SIZE) $(COMPRESS_PARAM)
 
 $(BUILD_DIR)/config.h $(BUILD_DIR)/saveflash.ld &: $(BUILD_DIR)/roms.a
 	$(V)/bin/sh -c true
@@ -423,4 +431,4 @@ distclean: clean
 #######################################
 -include $(wildcard $(BUILD_DIR)/*.d)
 
-# *** EOF ***
+# *** EOF ***