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As a developer it is often painful to continually update the `Makefile.in' whenever the include-file dependencies change in a project. Automake supplies a way to automatically track dependency changes.
Automake always uses complete dependencies for a compilation, including
system headers. Automake's model is that dependency computation should
be a side effect of the build. To this end, dependencies are computed
by running all compilations through a special wrapper program called
depcomp understands how to coax many different C
and C++ compilers into generating dependency information in the format
automake -a will install
depcomp into your
source tree for you. If
depcomp can't figure out how to properly
invoke your compiler, dependency tracking will simply be disabled for
Experience with earlier versions of Automake (8) taught us that it is not reliable to generate dependencies only on the maintainer's system, as configurations vary too much. So instead Automake implements dependency tracking at build time.
Automatic dependency tracking can be suppressed by putting
no-dependencies in the variable
no-dependencies as an argument to
(this should be the prefered way). Or, you can invoke
-i option. Dependency tracking is enabled by default.
The person building your package also can choose to disable dependency
tracking by configuring with
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