Macintosh

X11 for Mac OS X Tcl/Tk requires X Window System. The X11 for Mac OS is a complete X Window System and distributed as an open source software. It can be installed at the time of Mac OS X installation. If it is not installed, you should install it using Mac OS X Install disk.

Xcode Tools A software development environment called "Xcode Tools" is required when you choose compiling from the source code as installation method of PostgreSQL. It can be installed from Mac OS X Install disk. It is not necessary if you use the precompiled binary of PostgreSQL. For installation of PostgreSQL, please refer to Section 1.4.2 ().