Unused warnings are no longer treated as errrors by default (#4092)

.github/workflows/build.yml

@@ -17,6 +17,7 @@ jobs:
       GAME_LANGUAGE: ENGLISH
       MODERN: 0
       COMPARE: 0
+      UNUSED_ERROR: 1
     steps:
       - name: Checkout
         uses: actions/checkout@v2

Makefile

@@ -36,13 +36,14 @@ else
 EXE :=
 endif
 
-TITLE       := POKEMON EMER
-GAME_CODE   := BPEE
-MAKER_CODE  := 01
-REVISION    := 0
-MODERN      ?= 1
-TEST        ?= 0
-ANALYZE     ?= 0
+TITLE        := POKEMON EMER
+GAME_CODE    := BPEE
+MAKER_CODE   := 01
+REVISION     := 0
+MODERN       ?= 1
+TEST         ?= 0
+ANALYZE      ?= 0
+UNUSED_ERROR ?= 0
 
 ifeq (agbcc,$(MAKECMDGOALS))
   MODERN := 0
@@ -127,6 +128,12 @@ override CFLAGS += -mthumb -mthumb-interwork -O2 -mabi=apcs-gnu -mtune=arm7tdmi
 ifeq ($(ANALYZE),1)
 override CFLAGS += -fanalyzer
 endif
+# Only throw an error for unused elements if its RH-Hideout's repo
+ifeq ($(UNUSED_ERROR),0)
+ifneq ($(GITHUB_REPOSITORY_OWNER),rh-hideout)
+override CFLAGS += -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
+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))"