[build] Remove DEFAULT

It was redundant with HANDY_TARGETS and HANDY_TARGETS_EXTENSIONS

Makefile

@@ -99,8 +99,7 @@ all_objs = $(call object_for,$(all_src))
 include build/targets.mak
 
 # Fill in the default recipe
-DEFAULT ?= $(BUILD_DIR)/epsilon.$(EXE)
-default: $(DEFAULT)
+default: $(firstword $(HANDY_TARGETS)).$(firstword $(HANDY_TARGETS_EXTENSIONS))
 
 # Load standard build rules
 include build/rules.mk

build/targets.mak

@@ -2,13 +2,8 @@
 # Those can be built easily by simply invoking "make target.ext". The named file
 # will be built in $(BUILD_DIR).
 
-HANDY_TARGETS +=
-HANDY_TARGETS_EXTENSIONS += $(EXE)
-
-define handy_target_rule
-.PHONY: $(1).$(2)
-$(1).$(2): $$(BUILD_DIR)/$(1).$(2)
-endef
+HANDY_TARGETS ?=
+HANDY_TARGETS_EXTENSIONS ?=
 
 # Epsilon base target
 
@@ -74,6 +69,17 @@ HANDY_TARGETS += test
 -include build/targets.$(PLATFORM).mak
 
 # Generate handy targets rules
+# Define handy targets
+# Those can be built easily by simply invoking "make target.ext". The named file
+# will be built in $(BUILD_DIR).
+
+HANDY_TARGETS_EXTENSIONS += $(EXE)
+
+define handy_target_rule
+.PHONY: $(1).$(2)
+$(1).$(2): $$(BUILD_DIR)/$(1).$(2)
+endef
+
 $(foreach extension,$(HANDY_TARGETS_EXTENSIONS),$(foreach executable,$(HANDY_TARGETS),$(eval $(call handy_target_rule,$(executable),$(extension)))))
 
 include build/targets.all.mak

ion/src/simulator/android/Makefile

@@ -63,6 +63,4 @@ $(BUILD_DIR)/%.apk: $(apk_deps)
 	$(Q) ANDROID_HOME=$(ANDROID_HOME) EPSILON_VERSION=$(EPSILON_VERSION) BUILD_DIR=$(BUILD_DIR) EPSILON_VARIANT=$* ion/src/simulator/android/gradlew -b ion/src/simulator/android/build.gradle assembleRelease
 	$(Q) cp $(BUILD_DIR)/app/outputs/apk/release/android-release*.apk $@
 
-DEFAULT = epsilon.apk
-
 endif

ion/src/simulator/ios/Makefile

@@ -89,6 +89,4 @@ simulator_app_deps += $(call simulator_app_resource,launch.storyboardc)
 
 include ion/src/simulator/shared/apple/targets.mak
 
-DEFAULT = epsilon.ipa
-
 endif

ion/src/simulator/macos/Makefile

@@ -43,6 +43,4 @@ simulator_app_deps += $(call simulator_app_resource,app.icns)
 
 include ion/src/simulator/shared/apple/targets.mak
 
-DEFAULT = epsilon.app
-
 endif