./configure --prefix=/usr/local/pgsql
.....
configure: error: zlib library not found
If you have zlib already installed, see config.log for details on the
failure. It is possible the compiler isn't looking in the proper directory.
Use --without-zlib to disable zlib support.
解决方法
apt-get install zlib1g-dev
或
apt-cache search zlib dev
参考：http://ubuntuforums.org/showthread.php?t=692704