Re: pkg/30577: audio/libvorbis w/ sunpro missing libsunmath for sincos()

[grant beattie <grant%NetBSD.org@localhost>]

The following reply was made to PR pkg/30577; it has been noted by GNATS.

From: grant beattie <grant%NetBSD.org@localhost>
To: pkg-manager%netbsd.org@localhost, gnats-admin%netbsd.org@localhost,
        pkgsrc-bugs%netbsd.org@localhost
Cc: 
Subject: Re: pkg/30577: audio/libvorbis w/ sunpro missing libsunmath for 
sincos()
Date: Thu, 23 Jun 2005 11:32:16 +1000

 On Thu, Jun 23, 2005 at 12:55:00AM +0000, grant%NetBSD.org@localhost wrote:
 
 > >Description:
 > libvorbis needs to be linked against libsunmath when built with sunpro
 > so it can resolve sincos().
 > >How-To-Repeat:
 > build libvorbis on Solaris w/ sunpro and try to link an executable
 > with it.
 > >Fix:
 > as libsunmath is provided by sunpro itself, it should be statically
 > linked so binaries are not dependent on libsunmath.so which doesn't
 > exist in Solaris base.
 > 
 > I'm submitting this as a PR so I don't forget about it :)
 
 this behaviour is a result of the -fast argument to cc(1), which turns
 on -xlibmopt.
 
 one option might be to follow -fast with -xnolibmopt (which disables
 the default -fast behaviour of using the optimized math library) or
 add "-B static -lsunmath -B dynamic" whenever -fast and -lm are
 passed.
 
 of course, another bigger issue with the use of -fast -fast (and other
 compiler flags) is that binaries will not run on earlier processor
 family systems than they were built on.