Restore ProDOS-free Apple II boot disk. (#145)

Author: FozzTexx

Makefile

@@ -83,6 +83,11 @@ coco/disk-post::
 A2_LINKER_CFG = src/apple2/config.cfg
 EXECUTABLE_EXTRA_DEPS_APPLE2 = $(A2_LINKER_CFG)
 LDFLAGS_EXTRA_APPLE2 = -C $(A2_LINKER_CFG)
+WITHOUT_PRODOS_BOOT = dist.apple2/bootable.po
+
+apple2/disk-post::
+	cp $(WITHOUT_PRODOS_BOOT) $(BUILD_DISK)
+	ac -as $(BUILD_DISK) $(PRODUCT_BASE) < $(BUILD_EXEC)
 
 ########################################
 # Atari customization

dist.apple2/bootable.po

@@ -10,7 +10,7 @@ r2r:: $(BUILD_DISK) $(BUILD_LIB) $(R2R_EXTRA_DEPS_$(PLATFORM_UC))
 	make -f $(PLATFORM_MK) $(PLATFORM)/r2r-post
 
 PRODOS_VERSION = 2.4.3
-PRODOS8_DISK := $(CACHE_PLATFORM)/PRODOS8-$(PRODOS_VERSION).po
+PRODOS8_DISK ?= $(CACHE_PLATFORM)/PRODOS8-$(PRODOS_VERSION).po
 CC65_UTILS_DIR := $(shell cl65 --print-target-path --target $(PLATFORM))/$(PLATFORM)/util
 LOADER_SYSTEM := loader.system