xorg-dev - 1:7.7+19 main

This metapackage provides the development libraries for the X.Org X Window
System.
.
X Window System design documentation, manual pages, library reference
works, static versions of the shared libraries, and C header files are
supplied by the packages depended on by this metapackage.
.
Note that this is a convenience package for users and is not a package for
Debian developers to have their package depend on.