FAQ 8.20 How can I call my system's unique C functions from Perl?

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This is an excerpt from the latest version perlfaq8.pod, which
comes with the standard Perl distribution. These postings aim to
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to review and update the answers. The latest version of the complete
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8.20: How can I call my system's unique C functions from Perl?

In most cases, you write an external module to do it--see the answer to
"Where can I learn about linking C with Perl? [h2xs, xsubpp]". However,
if the function is a system call, and your system supports "syscall()",
you can use the "syscall" function (documented in perlfunc).

Remember to check the modules that came with your distribution, and CPAN
as well--someone may already have written a module to do it. On Windows,
try "Win32::API". On Macs, try "Mac::Carbon". If no module has an
interface to the C function, you can inline a bit of C in your Perl
source with "Inline::C".



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