I'm trying to replicate the example of a simple XS module given at https://www.lemoda.net/xs/xs-intro/geometry.html

I have this send_string.cpp file

#include "send_string.h"
#include "stdio.h"
 void send_string (const wchar_t * str) {
 printf ("string\n"); 
}

[download]
And the header send_string.h file is 
 void send_string (const wchar_t * str);

[download]
The package name is Kbh, and the Kbh.xs file is 
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"

#include "ppport.h"
#include "send_string.h"

MODULE = Kbh               PACKAGE = Kbh

PROTOTYPES: DISABLE

void
send_string(s)
     const wchar_t *    s

TYPEMAP: <<HERE
const wchar_t * T_PV
HERE

[download]
My Makefile.pl is 
use ExtUtils::MakeMaker;
WriteMakefile (
    NAME => 'Kbh',
    VERSION_FROM => 'lib/Kbh.pm',
    OBJECT => 'Kbh.o send_string.o',
)

[download]
My lib/Kbh.pm file is 
package Kbh;
our $VERSION = '0.01';
require XSLoader;
XSLoader::load('Kbh', $VERSION);
1;

[download]
When I run dmake I get the linking error "Kbh.o:Kbh.c:(.text+0x75): undefined reference to `send_string'"

Thanks for any help

François

In reply to XS linking problem by frazap

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.