gecko-dev/build/docs/mozbuild/dumbmake.rst
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dumbmake
========
*dumbmake* is a simple dependency tracker for make.
It turns lists of make targets into longer lists of make targets that
include dependencies. For example:
netwerk, package
might be turned into
netwerk, netwerk/build, toolkit/library, package
The dependency list is read from the plain text file
`topsrcdir/build/dumbmake-dependencies`. The format best described by
example:
build_this
when_this_changes
Interpret this to mean that `build_this` is a dependency of
`when_this_changes`. More formally, a line (CHILD) indented more than
the preceding line (PARENT) means that CHILD should trigger building
PARENT. That is, building CHILD will trigger building first CHILD and
then PARENT.
This structure is recursive:
build_this_when_either_change
build_this_only_when
this_changes
This means that `build_this_when_either_change` is a dependency of
`build_this_only_when` and `this_changes`, and `build_this_only_when`
is a dependency of `this_changes`. Building `this_changes` will build
first `this_changes`, then `build_this_only_when`, and finally
`build_this_when_either_change`.