make 'w2cas' a targetutil

doc/atari.sgml

@@ -230,7 +230,7 @@ The size of a cassette boot file is restricted to 32K. Larger programs
 would need to be split in more parts and the parts to be loaded manually.
 
 To write the generated file to a cassette, a utility to run
-on an Atari is provided (<tt/util&sol;atari&sol;w2cas.c/).
+on an Atari is provided (<tt/W2CAS.COM/).
 
 <sect1><tt/atarixl/ config files<p>
 

libsrc/Makefile

@@ -102,6 +102,7 @@ MKINC = $(GEOS) \
         nes
 
 TARGETUTIL = apple2 \
+             atari \
              geos-apple
 
 GEOSDIRS = common      \

libsrc/atari/targetutil/Makefile.inc

@@ -0,0 +1,14 @@
+ifeq ($(TARGET),atari)
+
+DEPS += ../wrk/$(TARGET)/w2cas.d
+
+../wrk/$(TARGET)/w2cas.o: CC65FLAGS:=-O -W error
+../wrk/$(TARGET)/w2cas.o: $(SRCDIR)/targetutil/w2cas.c | ../wrk/$(TARGET)
+	$(COMPILE_recipe)
+
+../targetutil/W2CAS.COM: ../wrk/$(TARGET)/w2cas.o ../lib/$(TARGET).lib | ../targetutil
+	$(LD65) -o $@ -t $(TARGET) $^
+
+$(TARGET): ../targetutil/W2CAS.COM
+
+endif