Re: [MACTCL] ANN: Tclkit-macos-8.4-35 Build available

[Daniel A. S. <st...@ic...>]

Maths,

At 18:21 +0200 on 24/4/02, Mats Bengtsson wrote:

>Is it possible to load shared libs from within vfs using a
>separate pkgIndex.tcl file? Is there a problem only when the
>pkgIndex stuffs are inside the resource fork?

the problem is not with the pkgIndex resource but the the 'cfrg' 
resource which is needed for full CFM library functionality; however 
c.f. tcl/mac/tclMacLoad.c (TclpLoadFile):

      * See if this fragment has a 'cfrg' resource.  It will tell us where
      * to look for the fragment in the file.  If it doesn't exist we will
      * assume we have a ppc frag using the whole data fork.

and indeed this works in my testing (not inside a vfs, just by 
removing the 'cfrg' resource from a Tcl extension), i.e. datafork 
only libraries can be loaded from disk, so the same _should_ be true 
for vfs.

there is a problem with merged fragments however, as only loading of 
the first sub-fragment will be attempted (e.g. can't have merged 
shared libraries and the like)

same problem for ppc & cfm68k fat fragments, separate libraries will 
be needed for ppc & 68k, with e.g. the pkgIndex.tcl loading one or 
the other depending on $::tcl_platform(machine) (btw, the comment in 
TclpLoadFile about assuming a ppc frag is wrong, it's really the 
current RT arch. that's assumed)

I'll look into loading from vfs once my dev. box is booted back into 9...

Cheers,

Daniel
-- 
** Daniel A. Steffen          **  "And now to something completely
** Department of Mathematics  **   different"    Monty Python
** Macquarie University       ** <mailto:st...@ma...>
** NSW 2109 Australia         ** <http://www.maths.mq.edu.au/~steffen/>