Author image S├ębastien Aperghis-Tramoni
and 1 contributors


ExtUtils::FindFunctions - Find functions in external libraries


Version 0.02


    use ExtUtils::FindFunctions;

    my @check = qw(pcap_findalldevs  pcap_open_dead  pcap_setnonblock  pcap_lib_version);
    my @funcs = have_functions(libs => '-lpcap', funcs => \@check, return_as => 'array');


This module provides the have_functions() function which can be used to check if given functions are provided by an external library. Its aim is to be used as an embedded library by Makefile.PL which needs such facilities. Use the install-extutils-findfunctions command to embed it in your distribution.


The module exports by default the have_functions() function.



Load the specified libraries and search for the given functions names. The results are returned as an array or as an hash depending on the return_as parameter.


  • libs - specify the libraries to load; this argument will be given to DynaLoader::dl_findfile()

  • funcs - a reference to the list of functions to search

  • return_as - specify the type of the result, either as an array or as a hash. As an array, only the functions found in the libraries are returned. As a hash, the keys are the function names and their value indicates if the function is present or not.


Sébastien Aperghis-Tramoni, <sebastien at>


Please report any bugs or feature requests to bug-extutils-findfunctions at, or through the web interface at I will be notified, and then you'll automatically be notified of progress on your bug as I make changes.


You can find documentation for this module with the perldoc command.

    perldoc ExtUtils::FindFunctions

You can also look for information at:


Copyright 2006 Sébastien Aperghis-Tramoni, all rights reserved.

This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.