9. Writing Autoconf Macros

When you write a feature test that could be applicable to more than one software package, the best thing to do is encapsulate it in a new macro. Here are some instructions and guidelines for writing Autoconf macros.

9.1 Macro Definitions		Basic format of an Autoconf macro
9.2 Macro Names		What to call your new macros
9.3 Reporting Messages		Notifying autoconf users
9.4 Dependencies Between Macros		What to do when macros depend on other macros
9.5 Obsoleting Macros		Warning about old ways of doing things
9.6 Coding Style		Writing Autoconf macros à la Autoconf