Your system administrator may require that you use a master build descriptor to specify information that cannot be overridden and that is in effect for every generation that occurs in your installation of EGL. By a mechanism described in Master build descriptor, the system administrator identifies that part by name, along with the EGL build file that contains the part.
If the information in the master build descriptor is not sufficient for a particular generation process or if no master build descriptor is identified, you can specify a build descriptor at generation time, along with the EGL build file that contains the generation-specific part. The generation-specific build descriptor (like the master build descriptor) must be at the top level of an EGL build file.
You can create a chain of build descriptors from the generation-specific build descriptor, so that the first in the chain is processed before the second, and the second before the third. When you define a given build descriptor, you begin a chain (or continue one) by assigning a value to the build descriptor option nextBuildDescriptor. Your system administrator can use the same technique to create a chain from the master build descriptor. The implication of chaining information is described later.
Any build part referenced by a build descriptor must be visible to the referencing build descriptor, in accordance with the rules described in References to parts. The build part can be a linkage options part or a resource associations part, for example, or the next build descriptor.
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