changequote(<<, >>)dnl because of the regexp [blabla]
FLEX_VERSION=`flex --version | sed -e 's/^[^0-9]*//' -e 's/[^0-9]*$//'`
changequote(<<, >>)dnl because of the regexp [blabla]
FLEX_VERSION=`flex --version | sed -e 's/^[^0-9]*//' -e 's/[^0-9]*$//'`