From: Gary <gapjunk@...>
Date: 2007-10-20T07:15:05+09:00
Subject: Building an extension in C++


I'm using cygwin to try to build an extension in C++.  I've stripped
down the pickaxe book's example (http://www.rubycentral.com/pickaxe/
ext_ruby.html) to the bare minimum.  It looks like:

#include "ruby.h

VALUE cTest;

void Init_Test() {
  cTest = rb_define_class("Test", rb_cObject);
}

If I name the file Test.c, it works nicely.  If I name the file
Test.cpp I get the following error when I try to require the file in
irb.

LoadError: No such file or directory - /usr/lib/ruby/site_ruby/1.8/
i386-cygwin/Test.so
  from /usr/lib/ruby/site_ruby/1.8/i386-cygwin/Text.so
  from (irb):1

For the whole proceedure I do:

make clean
ruby extconf.rb
make
make install
irb
require "Test"

Any helpful ideas?