Initial Makefile sync

make_tools.mk

@@ -0,0 +1,22 @@
+# This controls building executables in the `tools` folder.
+# Can be invoked through the `Makefile` or standalone.
+
+MAKEFLAGS += --no-print-directory
+
+# Inclusive list. If you don't want a tool to be built, don't add it here.
+TOOLS_DIR := tools
+TOOL_NAMES := aif2pcm bin2c gbafix gbagfx jsonproc mapjson mid2agb preproc ramscrgen rsfont scaninc
+
+TOOLDIRS := $(TOOL_NAMES:%=$(TOOLS_DIR)/%)
+
+# Tool making doesnt require a pokefirered dependency scan.
+RULES_NO_SCAN += tools check-tools clean-tools $(TOOLDIRS)
+.PHONY: $(RULES_NO_SCAN)
+
+tools: $(TOOLDIRS)
+
+$(TOOLDIRS):
+	@$(MAKE) -C $@
+
+clean-tools:
+	@$(foreach tooldir,$(TOOLDIRS),$(MAKE) clean -C $(tooldir);)