CXX=aCC CC=cc ./configure --shared --prefix=/usr/local
gmake
gmake install
gmake distclean
CXX=aCC CC=cc ./configure --prefix=/usr/local
gmake
gmake install
gmake distclean
rm *.sl *.sl.*
CXX=g++ CC=gcc ./configure --shared --prefix=/usr/local --libdir=/usr/local/lib/pa20_64
ln -s libz.so libz.sl
gmake
gmake install
gmake distclean
rm libz.sl
CXX=g++ CC=gcc ./configure --prefix=/usr/local --libdir=/usr/local/lib/pa20_64
rm /usr/local/lib/pa20_64/libz.a
gmake
gmake install

cat /usr/local/lib/pa20_64/libz.so > /usr/local/lib/pa20_64/libz.sl
chmod 755 /usr/local/lib/pa20_64/libz.sl
rm -f /usr/local/lib/pa20_64/libz.so*