Re: [Gnucap-devel] gnucap development snapshot 2009-06-11

[David Fang]

> On Friday 12 June 2009, Nicolás Barabino wrote:
> > Hello, I have a problem compiling the bsim plugins in an
> > intel based mac, using apple's gcc. The problem arises while
> > trying to use g++ whith "-shared", which is not supported by
> > apple's gcc. I think the solution is to use "-dynamiclib"
> > instead of "-shared" but i haven't found the right way yet.
> >
> > Thanks in advance for your help
> > Regads
> > Nico
>
> Sorry about the delay in responding.
>
> I don't know the answer.  Maybe someone else can step in.  The
> plan is to use "libtool" to automatically handle things like
> this.  Someone is working on this, but I don't know the status.

Hi,
	I'm working with Al and others to libtoolize the plug-in system as 
a portability solution.  My testing is primarily done on 
powerpc-apple-darwin8.  I can't name the specific flags off the top of my 
head, but I have developed other plug-in systems that work on the Mac 
using libtool (so I didn't have to think about them).  So far I've started 
by editing the base-package's build to use libtool.  Once that is 
satisfactorily reviewed, I will propose support for gnucap's other 
optional plug-in packages.
	Please bear with us, I generally only have spare time to work on 
this over the weekends.  :)

> There is also a question about the use of the function "dlopen"
> which complies with the POSIX standard, but some systems do not
> provide compliant libraries.  I don't know where the mac stands
> on this.

The idea is to use libtool's libltdl API (e.g. lt_dlopenext) which 
provides a more consistent interface that wraps around the differences 
between various platforms.

Fang

David Fang
http://www.csl.cornell.edu/~fang/
http://www.achronix.com/