(autoconf.info)Library Functions


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5.5 Library Functions
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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.

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

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