I'm not up to date with RHEL packaging, but judging from e.g. http://rpm.pbone.net/index.php3/stat/4/idpl/5602905/com/zlib-1.2.1.2-1.2.x86_64.rpm.html
the packages you have are runtime libraries, not development packages (i.e. header files and link libraries are missing). Look for packages with -dev or -devel in their names. Or look for a python-imaging package from RedHat; I'm pretty sure you can find prebuilt packages for all major Linuxes these days. Cheers /F 2009/3/5 Jorge Pereira <jorge-m-pere...@ptinovacao.pt>: > Hi, > > We’re trying to install PIL 1.1.6 on a RHEL 4Up4 x64, but we are having some > difficulties. > > Although zlib RHEL’s rpms are installed (zlib-1.2.1.2-1.2.i386 and > zlib-1.2.1.2-1.2.x86_64), when executing “python setup.py build_ext –I”, we > keep getting the message saying that ZLIB (PNG/ZIP) support is not > available. Same happens with FREETYPE and JPEG. > > Can you hel? > > > > Best regards > > > > > > _______________________________________________ > Image-SIG maillist - image-...@python.org > http://mail.python.org/mailman/listinfo/image-sig > > _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig