File: minJavaVerOpts

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#!/usr/bin/env bash
echo -n 'Determining minimum version javac can compile... ' 1>&2
echo 'public class tmp {}' > tmp.java
for v in {5..100}; do
	if javac -source $v -target $v tmp.java > /dev/null 2>&1; then
		rm -f tmp.java tmp.class
		echo "$v" 1>&2
		echo "-source $v -target $v"
		exit 0
	fi
done
rm -f tmp.java tmp.class
echo 'Unknown' 1>&2
echo ''
exit 1