cannot find -ldl

Dan Nelson dnelson at
Thu Jan 26 12:12:50 PST 2006

In the last episode (Jan 26), Paul Schmehl said:
> --On Thursday, January 26, 2006 11:18:54 -0600 Dan Nelson  <dnelson at> wrote:
> >In the last episode (Jan 26), Paul Schmehl said:
> >>I'm fiddling with an app that was probably written for/on Linux. 
> >>It configures fine, but when I make, I get the error "cannot find
> >>-ldl". Is there a FreeBSD equivalent for libldl?  A workaround?  A
> >>library that I'm missing?
> >
> >It's not needed on FreeBSD.  The dlopen family of functions is in
> >libc. The configure script should probably have something like this
> >in it so it only uses libdl if it can't find dlopen with its current
> >set of libs::
> >
> >AC_SEARCH_LIBS(dlopen, dl)
> Dan, you're referring to, right?  There's no AC_SEARCH
> in that at all.  Do I just need to add a line?  If so, does it matter
> where I add it?

Ya, configure.{in,ac}.  It doesn't matter much where it goes; at the
bottom is probably safest.  You will also need to remove any hardcoded
"-ldl" strings from Makefile.{in,am}.  Configure will add "-ldl" to
$LIBS if it turns out to be required.

	Dan Nelson
	dnelson at

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