File: autoconf.info,  Node: Library Functions,  Next: Header Files,  Prev: Libraries,  Up: Existing Tests

5.5 Library Functions
=====================

The following macros check for particular C library functions.  If there
is no macro specifically defined to check for a function you need, and
you don't need to check for any special properties of it, then you can
use one of the general function-check macros.

* Menu:

* Function Portability::        Pitfalls with usual functions
* Particular Functions::        Special handling to find certain functions
* Generic Functions::           How to find other functions