LDFLAGS="$LDFLAGS -lm" ./configure --with-xml-parser=expat --with-www=none
tar -xzvf libsbml-4.2.0-render-extension.patch.tgz
patch -p1 < libsbml-4.2.0-render-extension.patch
./configure --enable-layout=yes [--enable-render=yes] --with-expat --disable-compression