On my similar situation (compiling ZMySQLDA with Debian 2.1), I needed the python-dev package, which had include headers. From rpmfind.net, there appears to be a similar python-devel package that shipped with RedHat 5.1: http://rpmfind.net/linux/RPM/redhat/5.1/i386/python-devel-1.5.1-4.i386.html -- Stephen Pitts smpitts@midsouth.rr.com webmaster - http://www.mschess.org