apenwarr-redo/t/deps/test1.do

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# force-rebuild t1dep
redo t1dep
if [ -e t1a ]; then
BEFORE="$(cat t1a)"
else
BEFORE=
fi
redo-ifchange t1a # it definitely had to rebuild because t1dep changed
AFTER="$(cat t1a)"
if [ "$BEFORE" == "$AFTER" ]; then
echo "t1a was not rebuilt!" >&2
exit 43
fi