Make it build with Merlin32

.gitignore

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+*.dsk
+*.swp

Makefile

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+# Compiles with https://www.brutaldeluxe.fr/products/crossdevtools/merlin/
+#
+ifeq ($(OS),Windows_NT)
+    MERLIN_DIR=C:/opt/Merlin32_v1.0
+    MERLIN_LIB=$(MERLIN_DIR)/Library
+    MERLIN=$(MERLIN_DIR)/Windows/Merlin32
+    RM=del /s
+else
+    MERLIN_DIR=$(HOME)/opt/Merlin32_v1.0
+    MERLIN_LIB=$(MERLIN_DIR)/Library
+    MERLIN=$(MERLIN_DIR)/Linux64/Merlin32
+    RM=rm -f
+endif
+
+AC=java -jar AppleCommander-ac-1.4.0.jar
+SRC=delhndlr.s
+PGM=DELHNDLR
+VOL=$(PGM)
+DSK=$(PGM).dsk
+
+$(DSK): $(PGM)
+	$(AC) -pro140 $(DSK) $(VOL)
+	$(AC) -p $(DSK) $(PGM) SYS < $(PGM)
+
+$(PGM): $(SRC)
+	$(MERLIN) $(MERLIN_LIB) $(SRC)
+	@# Merlin fails to provide a non-0 exit code on failure so
+	@# it needs to be simulated by checking for the error_output.txt
+	@# file.
+	@test -e $(PGM)
+
+clean:
+	$(RM) $(DSK) $(PGM) error_output.txt _FileInformation.txt
+