7. Results of Tests

Once configure has determined whether a feature exists, what can it do to record that information? There are four sorts of things it can do: define a C preprocessor symbol, set a variable in the output files, save the result in a cache file for future configure runs, and print a message letting the user know the result of the test.

7.1 Defining C Preprocessor Symbols		Defining C preprocessor symbols
7.2 Setting Output Variables		Replacing variables in output files
7.3 Caching Results		Speeding up subsequent configure runs
7.4 Printing Messages		Notifying configure users