Commit 393b0d5a authored by Francois-Rene Rideau's avatar Francois-Rene Rideau
Browse files

Tweak the make presentation some more.

parent 3509d92f
......@@ -98,13 +98,12 @@ in terms of how systems are specified.
multiple layers of languages --- some domain-specific languages and
some generalized programming languages.
{\make} interprets a \emph{makefile} in the following way:
A text-substitution preprocessor expands macro definitions in the file,
producing a set of pattern-matching rules that the
main engine uses to infer how to build components.
The rules have as their consequents parameterized shell scripts that actually
perform the build actions.
\make{} fires these rules as it chains backwards from targets it has been
directed to build towards dependencies that are required.
A text-substitution preprocessor expands macro definitions in the file,
producing a set of pattern-matching rules that
an inference engine uses to determine how to build components
by chaining backwards from the targets it has been directed to build.
The rules are annotated with parameterized shell scripts
that actually perform the build actions.
{\make} is a powerful tool that can express arbitrary programs,
but makefiles can be a mesh of code that defies any simple analysis.
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