# This is a general-purpose makefile for building java code that links to
# opencv libraries using javacv.
#
# Most configuration variables are set with ?= to allow environment variables
# to override them.
#
# Basic usage:
#
# make CvDemo.class
# `make -s java-cmd` CvDemo ARGS
#
# where ARGS are the command line arguments (if any) that you want to pass to
# CvDemo.

JAVA ?= java
JAVAC ?= javac

# directory containing javacv jars
JCV_DIR ?= .
ifneq ($(patsubst MINGW%,MINGW,$(shell uname)),MINGW)
CLASSPATH ?= $(JCV_DIR)/javacpp.jar:$(JCV_DIR)/javacv.jar:.
else
CLASSPATH ?= $(JCV_DIR)\javacpp.jar;$(JCV_DIR)\javacv.jar;.
endif

%.class: %.java
	$(JAVAC) -classpath $(CLASSPATH) $<

%.run: %.class
	$(JAVA) -classpath $(CLASSPATH) $(basename $@)

# Build a java runtime command that still passes arguments to the java program
# like this:
#
# `make -s java-cmd` CvDemo args
java-cmd:
	echo "$(JAVA) -classpath $(CLASSPATH)"

clean:
	$(RM) *.class