not work on earlier versions of Mac OS).
You must have the developer tools (called Xcode) installed. Xcode 3 should
-be available on the install DVD. See
+be available on the install DVD; Xcode 4 is available for download from
+developer.apple.com and, for Lion, from the Mac App Store. See
http://guide.macports.org/chunked/installing.xcode.html
that can be used by Wireshark and TShark. The versions of libraries to
download are specified by variables set early in the script; you can
comment out the settings of optional libraries if you don't want them
-downloaded and installed.
+downloaded and installed. Before running the macosx-setup.sh script,
+and before attempting to build Wireshark, make sure your PKG_CONFIG_PATH
+environment variable's setting includes both /usr/X11/lib/pkgconfig
+and /usr/local/lib/pkgconfig.
After you have installed those libraries: