[Evolution] Building evolution-data-server fails

["John A. Sullivan III" <jsullivan opensourcedevel com>]

Hello, all.  We are trying to rebuild evolution-data-server.  However,
we get the following errors when running ./configure:

checking for GNOME_PLATFORM... configure: error: Package requirements
(glib-2.0 >= 2.16.1
        gtk+-2.0 >= 2.14.0
        ORBit-2.0 >= 2.9.8
        libbonobo-2.0 >= 2.20.3
        gconf-2.0 >= 2.0.0
        libglade-2.0 >= 2.0.0
        libxml-2.0 >= 2.0.0
        libsoup-2.4 >= 2.3.0) were not met:

Package zlib was not found in the pkg-config search path.
Perhaps you should add the directory containing `zlib.pc'
to the PKG_CONFIG_PATH environment variable
Package 'zlib', required by 'GnuTLS', not found

zlib is installed. I did not check all the listed packages but the ones
I checked were installed with the latest versions. There is no zlib.pc
in /usr/share/pkgconfig.  What am I doing wrong? Thanks - John