Re: Adding the right flags to a program which dlopens

[Bob Friesenhahn]

On Wed, 2 Jun 2004, Stephane Bortzmeyer wrote:

> [Feel free to redirect to the proper mailing list if it is not a
> libtool problem, after all.]
>
> I have a program with binary plugins. It loads them by dlopen(3). I
> develop on Debian/Linux (where you need to pass -dl to the linker) and
> NetBSD (where you need nothing special). I use Autoconf, Automake and
> libtool.
>
> How to I set up the proper passing of flags to the linker?

If you are willing to build and link your loadable modules using 
libtool, then it as simple as linking using libtool's -module option. 
I pass the options "-no-undefined -module -avoid-version" while 
building modules.  The options may be pased via LDFLAGS.

I use something like ...

MODULECOMMONFLAGS = -no-undefined -module -avoid-version

# ART module
art_la_SOURCES      = art.c
art_la_LDFLAGS      = $(MODULECOMMONFLAGS)
art_la_LIBADD       = $(LIBMAGICK)

Bob
======================================
Bob Friesenhahn
address@hidden
http://www.simplesystems.org/users/bfriesen