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DESTDIR ?=
JAR_DIR ?= /usr/share/java
FAIL = exit 1
INSTALL = install
JAR = jar
JAVAC = javac
MKDIRS = mkdir -p
RM = rm -f
TOUCH = touch
all: PHONY jlex.jar
jlex.jar: classes
$(JAR) cfe $@ JLex.Main -C $< .
classes: Main.java
$(RM) -r $@
$(MKDIRS) $@
$(JAVAC) -d $@ $< || { $(RM) -r $@; $(FAIL); }
$(TOUCH) $@
install: PHONY $(DESTDIR)$(JAR_DIR)/jlex.jar
$(DESTDIR)$(JAR_DIR)/%.jar: %.jar
$(INSTALL) -Dm644 $< $@
clean: PHONY
$(RM) -r -- build *.jar
.PHONY: PHONY
.DELETE_ON_ERROR:
.SECONDARY:
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