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
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.
|• Using frozen files||Using frozen files|
|• Frozen file format||Frozen file format|