diff --git a/Makefile b/Makefile
index d899015225..df402f96ad 100644
--- a/Makefile
+++ b/Makefile
@@ -43,6 +43,7 @@ REVISION    := 0
 MODERN      ?= 1
 TEST        ?= 0
 ANALYZE     ?= 0
+UNUSED_ERROR?= 0
 
 ifeq (agbcc,$(MAKECMDGOALS))
   MODERN := 0
@@ -127,6 +128,9 @@ override CFLAGS += -mthumb -mthumb-interwork -O2 -mabi=apcs-gnu -mtune=arm7tdmi
 ifeq ($(ANALYZE),1)
 override CFLAGS += -fanalyzer
 endif
+ifeq ($(UNUSED_ERROR),0)
+override CFLAGS += -Wno-error=unused-variable -Wno-error=unused-variable -Wno-error=unused-const-variable -Wno-error=unused-parameter -Wno-error=unused-function -Wno-error=unused-but-set-parameter -Wno-error=unused-but-set-variable -Wno-error=unused-value -Wno-error=unused-local-typedefs
+endif
 ROM := $(MODERN_ROM_NAME)
 OBJ_DIR := $(MODERN_OBJ_DIR_NAME)
 LIBPATH := -L "$(dir $(shell $(PATH_MODERNCC) -mthumb -print-file-name=libgcc.a))" -L "$(dir $(shell $(PATH_MODERNCC) -mthumb -print-file-name=libnosys.a))" -L "$(dir $(shell $(PATH_MODERNCC) -mthumb -print-file-name=libc.a))"