The complete description of this function can be found in building-images.htm . Please refer to that document for descriptions of the arguments and their meanings . That allows the description to be in one place only. If the function foo is defined in the currently running image, it will not be defined in the newly built image unless you force the load of some file which defines foo . Neither will variables have their values in the running image unless that is also the initial value, even if they are defined.
Some arguments take symbols for values.
You cannot specify a function object to an argument calling for a symbol naming a function. The documentation is described in introduction.htm and the index is in index.htm . All rights reserved.