[sigc] Newbie really basic question

[Leandro Fanzone]

Hello, I'm using libsigc++ 2.0 (2.0.10, the one that's being distributed 
with Cedric's win32 binaries for gtkmm 2.6), and I'm trying to use it 
standalone. The following example:

#include <sigc++/sigc++.h>
void A()
{
   printf("A signaled\n");
}
int main(int argc, char *argv[])
{
   sigc::signal<void> signal_a;
   signal_a.connect(sigc::ptr_fun(A));
   signal_a.emit();
   return 0;
}
doesn't produce the expected "A signaled" message. Am I missing 
something obvious? I'm using gcc 3.3.1 under cygwin. Thank you in 
advance, and apologies if this is a terribly silly question...

Leandro.
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