I think the only problems might result from having different versions
of the same opcode library in different paths.  csmodules.c would have
to be modified to iterate through a series of directories instead of
just the single dir (i think it'd result in an extra for loop in
csoundLoadModules).

Might make sense for *nux situation where opcode libs that are
installed to OS can be in /usr/local/lib/csound/plugins64, but a user
could define their own local directory (i.e. ~/csoundPlugins) where
they have permissions to install things for their own plugins.

I haven't looked at the code though too much especially since Istvan
implemented the deferred loading stuff, so I don't know what issues
might arise.

steven


On 11/2/06, Victor Lazzarini <victor.lazzarini@nuim.ie> wrote:
> What would be the problem if we made OPCODEDIR optionally
> a list of directories?
>
> >
> > Hi Simon,
> >
> > For the OPCODEDIR stuff, just to clarify, it will be
> > OPCODEDIR if it is a float build and OPCODEDIR64 if it is
> > a double build.  Also, the default is the current working
> > directory only if it is not a release build.  You can see
> > the relevant code in InOut/csmodule.c.
> >
> > /* default directory to load plugins from if environment
> > variable is not set */ #if !(defined(_CSOUND_RELEASE_) &&
> > (defined(LINUX) || defined(__MACH__))) #  define
> > ENABLE_OPCODEDIR_WARNINGS 1 #  ifdef CS_DEFAULT_PLUGINDIR
> > #    undef CS_DEFAULT_PLUGINDIR
> > #  endif
> > #  define CS_DEFAULT_PLUGINDIR      "."
> > #else
> > #  define ENABLE_OPCODEDIR_WARNINGS 0
> > #  ifndef CS_DEFAULT_PLUGINDIR
> > #    ifndef USE_DOUBLE
> > #      define CS_DEFAULT_PLUGINDIR
> > "/usr/local/lib/csound/plugins" #    else
> > #      define CS_DEFAULT_PLUGINDIR
> > "/usr/local/lib/csound/plugins64" #    endif
> > #  endif
> > #endif
> >
> > It looks like you define CS_DEFAULT_PLUGINDIR and
> > buildRelease=1, then you can at build time change what the
> > default directory will be.
> >
> > Otherwise, you'll have to set the env variable at the user
> > side.  I've noticed on Fedora that a number of packages do
> > this by installing a shell script to the /etc/profile.d
> > directory, and I think then that if users define that in
> > bashrc, it will override the value in /etc/profile.d.
> >
> > Hope that helps!
> > steven
> >
> >
> >
> > On 11/1/06, Simon Schampijer <simon@schampijer.de> wrote:
> > > Hi,
> > > what I know about the csound plugin libraries is that
> > > (please correct me if I am wrong):
> > >
> > >  - Plugin libraries are loaded from the directory
> > > defined by the environment  variable OPCODEDIR (or the
> > > current directory if OPCODEDIR is unset)
> > >
> > >  So is it correct that there is no mechanism for looking
> > > into /usr/lib/csound/plugins or
> > > /usr/local/lib/csound/plugins as well if there are
> > plugins without specifying the OPCODEDIR? >
> > > When building a binary package where I install into
> > > /usr/csound/plugins for example do I need to set the env
> > > variable as well in order to make it work for the user?
> > >
> > > Thanks,
> > >    Simon
> > >
> > >
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