(autoconf.info)Dependencies Between Macros


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9.4 Dependencies Between Macros
===============================

Some Autoconf macros depend on other macros having been called first in
order to work correctly.  Autoconf provides a way to ensure that certain
macros are called if needed and a way to warn the user if macros are
called in an order that might cause incorrect operation.

* Prerequisite Macros
Ensuring required information
* Suggested Ordering
Warning about possible ordering problems
* One-Shot Macros
Ensuring a macro is called only once

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