Xcode is a package provided by Apple containing compilers, libraries and additional tools required to develop applications for Mac OS X.
Always make sure to install the latest available version of Xcode for your Mac OS X release; using outdated versions of Xcode may cause port install failures. Also note that Xcode is not updated via Mac OS X's Software Update utility on OS versions prior to 10.6, and is updated via the Mac App Store on 10.7.
Follow the instructions for your version of Mac OS X:
Download the latest version of Xcode as a disk image from the Apple developer website or get it using the Mac App Store.
After installing Xcode 4.3, the Command Line Tools must be installed. This is done from the Downloads section of Xcode's preferences.
If you wish to create Installer packages with port pkg,
you will also need to install PackageMaker, which is in the “Auxiliary
Tools for Xcode” package as of Xcode 4.3. The download page for this package
can be opened via the Xcode -> Open Developer Tool -> More Developer Tools...
menu item. After downloading and mounting the disk image, drag the PackageMaker
application to your /Applications directory.
If you are using Mac OS X 10.6, there are two branches of Xcode which could be considered to be the latest, 3.2.x and 4.0.x. Xcode 4 costs money, but Xcode 3 is still available free of charge. There are two options for downloading it:
Xcode 3.2.2 - smaller download, but you will need to run Software Update after installing to get the latest version.
Xcode 3.2.6 and iOS SDK 4.3 - includes iOS SDK which is not needed for MacPorts.
You may also be able to install Xcode 3.2 from your Mac OS X 10.6 DVD and then run Software Update to get the latest version.
Ensure that those of the following options that are available in the installer for your version of Xcode are selected:
If you have an earlier release of Mac OS X, you may download the latest version of Xcode for OS X 10.5 (v3.1.4) or for 10.4 (v2.5).
Ensure that those of the following options that are available in the installer for your version of Xcode are selected: