Minor Doc and Build Tweaks

Source/Makefile

@@ -24,27 +24,57 @@ ifeq ($(UNAME), Linux)
 # uname machine strings for building Propeller
 endif
 
-SUBDIRS = HDIAG
+.PHONY: doc prop shared bp images rom zrc zzrc
 
+all: prop shared images rom zrc zzrc
+
+doc:
+	$(MAKE) --directory Doc $(ACTION)
+
+prop:
 ifeq ($(BUILDPROP), 1)
-SUBDIRS += Prop
+	$(MAKE) --directory Prop $(ACTION)
 else
-$(info "Builing Propeller is not supported on this $(ARCH) host Linux OS")
+	$(info Builing Propeller is not supported on this $(ARCH) host Linux OS)
 endif
 
-SUBDIRS += Apps
-SUBDIRS += CBIOS
-SUBDIRS += Forth
-SUBDIRS += TastyBasic
-SUBDIRS += Fonts
-SUBDIRS += CPM22 ZCPR ZCPR-DJ ZSDOS CPM3 ZPM3 QPM
-#SUBDIRS += BPBIOS
-SUBDIRS += pSys
-SUBDIRS += RomDsk
-SUBDIRS += HBIOS
-SUBDIRS += Images
-SUBDIRS += ZRC
-SUBDIRS += ZZRC
-#SUBDIRS += Doc
-TOOLS = ../Tools
-include $(TOOLS)/Makefile.inc
+shared:
+	$(MAKE) --directory HDIAG $(ACTION)
+	$(MAKE) --directory CBIOS $(ACTION)
+	$(MAKE) --directory CPM22 $(ACTION)
+	$(MAKE) --directory QPM $(ACTION)
+	$(MAKE) --directory ZCPR $(ACTION)
+	$(MAKE) --directory ZCPR-DJ $(ACTION)
+	$(MAKE) --directory ZSDOS $(ACTION)
+	$(MAKE) --directory CPM3 $(ACTION)
+	$(MAKE) --directory ZPM3 $(ACTION)
+	$(MAKE) --directory pSys $(ACTION)
+	$(MAKE) --directory Apps $(ACTION)
+	$(MAKE) --directory Forth $(ACTION)
+	$(MAKE) --directory TastyBasic $(ACTION)
+	$(MAKE) --directory Fonts $(ACTION)
+	$(MAKE) --directory RomDsk $(ACTION)
+
+bp:
+	$(MAKE) --directory BPBIOS $(ACTION)
+
+images:
+	$(MAKE) --directory Images $(ACTION)
+
+rom:
+	$(MAKE) --directory HBIOS $(ACTION)
+
+zrc:
+	$(MAKE) --directory ZRC $(ACTION)
+
+zzrc:
+	$(MAKE) --directory ZZRC $(ACTION)
+
+
+clean: ACTION=clean
+
+clean: all
+
+diff: ACTION=diff
+
+diff: all