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<HEAD><TITLE> 11.10. How do I call perl from C?</TITLE></HEAD>
<BODY><a name="A11.10"> 11.10. How do I call perl from C?</a>

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You need to see a recent copy of the 
<a href="etc/perlembed.html"><kbd>perlembed(1)</kbd></a> pod page. By 
&quot;recent&quot; it needs to be up to date with at least perl5.002.
<p>
Borrowing from Jon Orwant's preamble to that document:
<p>
Do you want to:
<p>
<DL>
<DT>Use C from Perl?</DT>
<DD>
Read (at least)
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlcall.html">
<KBD>perlcall(1)</KBD></a>, 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlapi.html">
<KBD>perlapi(1)</KBD></a>, 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlxs.html">
<KBD>perlxs(1)</KBD></a>,
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlxstut.html">
<KBD>perlxstut(1)</KBD></a>,
 and the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlguts.html">
<KBD>perlguts(1)</KBD></a>  manpages.</DD>
<DT>Use C++ from Perl?</DT>
<DD>Recent changes to MakeMaker will make this easier. Be sure you are familiar
with 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlcall.html">
<KBD>perlcall(1)</KBD></a>, 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlapi.html">
<KBD>perlapi(1)</KBD></a>, 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlxs.html">
<KBD>perlxs(1)</KBD></a>,
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlxstut.html">
<KBD>perlxstut(1)</KBD></a>,
 and the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlguts.html">
<KBD>perlguts(1)</KBD></a>  manpages.</DD>
<DT>Use an executable program from Perl?</DT>
<DD>
Read about backquotes <KBD>``</KBD>, <KBD>system()</KBD>, and 
<KBD>exec()</KBD> built in perl functions. Try reading 
     the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlfunc.html">
<KBD>perlfunc(1)</KBD></a> manpage.</DD>
<DT>Use Perl from Perl?</DT>
<DD>
Read about <KBD>do</KBD>, <KBD>eval</KBD>, <KBD>use</KBD> and <KBD>require</KBD>.
     The <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlfunc.html">
<KBD>perlfunc(1)</KBD></a> manpage discusses these. For complete scripts you 
may also make use of the backquotes <KBD>``</KBD>, <KBD>system()</KBD>, or 
<KBD>exec()</KBD> built in perl functions, but you may take a performance hit
in doing so (see 
     <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlfunc.html">
<KBD>perlfunc(1)</KBD></a> for information).</DD>
<DT>Use C from C?</DT>
<DD>Rethink your design.</DD>
<DT>Use C++ from C++?</DT>
<DD>See previous.</DD>
<DT>Use Perl from C?</DT>
<DD>
Read (at least)
     the <a href="etc/perlembed.html"><KBD>perlembed(1)</KBD></a>
 and the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlguts.html">
<KBD>perlguts(1)</KBD></a>  manpages.</DD>
<DT>Use Perl from C++?</DT>
<DD>
Read (at least)
     the <a href="etc/perlembed.html"><KBD>perlembed(1)</KBD></a>
 and the <a href="http://www.metronet.com/0/perlinfo/perl5/manual/perlguts.html">
<KBD>perlguts(1)</KBD></a>  manpages.</DD>
</DL>
There is also an Doug MacEachern's  
<a href="mailto:dougm@osf.org">&lt;dougm@osf.org&gt;</a> embedder's development kit 
on CPAN and at a URL of the following form:
<pre>
    <a href="http://www.osf.org/~dougm/perl/">http://www.osf.org/~dougm/perl/Devel-embed-*.tar.gz</a>
</pre>


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