Make a top-level make build everything in order

Makefile

@@ -1,4 +1,4 @@
-SUBFOLDERS := exosphere fusee/fusee-primary fusee/fusee-secondary stratosphere/libstratosphere thermosphere
+SUBFOLDERS := exosphere fusee stratosphere thermosphere
 
 TOPTARGETS := all clean
 
@@ -7,4 +7,6 @@ $(TOPTARGETS): $(SUBFOLDERS)
 $(SUBFOLDERS):
 	$(MAKE) -C $@ $(MAKECMDGOALS)
 
+fusee: exosphere thermosphere stratosphere
+ 
 .PHONY: $(TOPTARGETS) $(SUBFOLDERS)

fusee/Makefile

@@ -1,61 +1,10 @@
-rwildcard = $(foreach d, $(wildcard $1*), $(filter $(subst *, %, $2), $d) $(call rwildcard, $d/, $2))
+SUBFOLDERS := fusee-primary fusee-secondary
 
-ifeq ($(strip $(DEVKITARM)),)
-$(error "Please set DEVKITARM in your environment. export DEVKITARM=<path to>devkitARM")
-endif
+TOPTARGETS := all clean
 
-include $(DEVKITARM)/base_tools
+$(TOPTARGETS): $(SUBFOLDERS)
 
-dir_source := src
-dir_out := out
-dir_exosphere := ../exosphere
-dir_loader := fusee-secondary
-dir_stage1 := fusee-primary
-
-ARCH := -march=armv4t -mtune=arm7tdmi -mthumb -mthumb-interwork
-
-ASFLAGS := -g $(ARCH)
-
-# For debug builds, replace -O2 by -Og and comment -fomit-frame-pointer out
-CFLAGS = \
-	$(ARCH) \
-	-g \
-	-O2 \
-	-fomit-frame-pointer \
-	-ffunction-sections \
-	-fdata-sections \
-	-std=gnu11 \
-	-Werror \
-	-Wall
-
-LDFLAGS = -specs=linker.specs -g $(ARCH)
-
-.PHONY: all
-all: $(dir_out)
-
-.PHONY: clean
-clean:
-	@$(MAKE) -C $(dir_exosphere) clean
-	@$(MAKE) -C $(dir_loader) clean
-	@$(MAKE) -C $(dir_stage1) clean
-	@rm -rf $(dir_out)
-
-.PHONY: $(dir_exosphere) $(dir_loader) $(dir_stage1)
-
-$(dir_out): $(dir_loader) $(dir_stage1)
-	@mkdir -p "$(dir_out)"
-	@$(MAKE) -C $(dir_exosphere)
-
-$(dir_exosphere)/out/exosphere.bin: $(dir_exosphere)
-	@$(MAKE) -C $<
-
-$(dir_loader):
-	@mkdir -p "$(dir_out)"
-	@$(MAKE) -C $(dir_loader)
-	@cp "$(dir_loader)/out/$(dir_loader).bin" "out/$(dir_loader).bin"
-
-$(dir_stage1):
-	@mkdir -p "$(dir_out)"
-	@$(MAKE) -C $(dir_stage1)
-	@cp "$(dir_stage1)/out/$(dir_stage1).bin" "out/$(dir_stage1).bin"
+$(SUBFOLDERS):
+	$(MAKE) -C $@ $(MAKECMDGOALS)
 
+.PHONY: $(TOPTARGETS) $(SUBFOLDERS)

stratosphere/Makefile

@@ -0,0 +1,13 @@
+KIPS := boot boot2 loader pm sm
+SUBFOLDERS := libstratosphere $(KIPS)
+
+TOPTARGETS := all clean
+
+$(TOPTARGETS): $(SUBFOLDERS)
+
+$(SUBFOLDERS):
+	$(MAKE) -C $@ $(MAKECMDGOALS)
+
+$(KIPS): libstratosphere
+
+.PHONY: $(TOPTARGETS) $(SUBFOLDERS)