wget http://www.clex.sk/download/clex-3.1.7.src.tar.gz
tar zxvf clex-3.1.7.src.tar.gz
patch -p0 <cygwin-clex.patch
cd clex-3.1.7
PATH=/usr/autotool/stable/bin:$PATH
rm missing
aclocal
touch NEWS README AUTHORS
autoheader
automake --add-missing
autoconf
./configure
make