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15 Fast loading of frozen state
Some bigger m4
applications may be built over a common base
containing hundreds of definitions and other costly initializations.
Usually, the common base is kept in one or more declarative files,
which files are listed on each m4
invocation prior to the
user’s input file, or else each input file uses include
.
Reading the common base of a big application, over and over again, may
be time consuming. GNU m4
offers some machinery to
speed up the start of an application using lengthy common bases.
15.1 Using frozen files | ||
15.2 Frozen file format |
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