[Fluxus] Trouble with FluxusInMred OSX - segfault in load-extension

[Scott]

Probably not good form to reply to my own first post, but I fixed it.
It was what I expected, the MzScheme shared library and MrEd library were
colliding, so I built fluxus with the MrEd Framework instead, and no
segfaults.
I still haven't got anything but a black gl window though... but I'm pretty
sure that's my inexperience.

On Wed, Mar 4, 2009 at 1:39 PM, Scott <alcoholiday at gmail.com> wrote:

> Howdy!
> First - Fluxus is awesome, and I'd like to use it for a big project.
> It took me a while, but I managed to get Fluxus to build on my 10.5.6
> MacBook... and I plan on documenting what I ended up doing in another post
> (one tip: "sudo scons darwin=1 PLTLib=/usr/local/lib /" <- note trailing
> slash!). Never used scons  before, which was part of the issue...
> regardless!
>
> I built PLT scheme (drscheme, mred, etc) from source and stuck it in
> /usr/local, and it works like it should.
> I built Fluxus and it works (Fluxus.app) just swell too!
>
> However, when I try the following in DrScheme:
> (load-extension
> "/usr/local/collects/fluxus-015/compiled/native/i386-macosx/3m/fluxus-engine_ss.dylib")
>
>
> I get a segfault in the fluxus-engine scheme_reload function, specifically
> it blows up doing scheme_intern_symbol since the symbol_table pointer is 0.
>
> (gdb) backtrace
> #0  symbol_bucket (table=0x0, key=0x1e1c76d0 "fluxus-engine", length=13,
> naya=0x0) at symbol.c:113
> #1  0x1e5f608c in scheme_intern_exact_symbol_in_table_worker
> (symbol_table=0x0, kind=0, name=0x1e1c76d0 "fluxus-engine", len=13) at
> symbol.c:377
> #2  0x1e5f6141 in scheme_intern_exact_symbol (name=0x0, len=0) at
> symbol.c:419
> #3  0x1e5f644f in scheme_intern_symbol (name=0x1e1c76d0 "fluxus-engine") at
> symbol.c:491
> #4  0x1e142caa in scheme_reload (env=0xd4bf88) at
> modules/fluxus-engine/src/FluxusEngine.cpp:313
> #5  0x007ddd4a in scheme_default_load_extension (argc=2, argv=0xbfffd5e4)
> at dynext.c:462
>
> At this point, I've decided to call in the experts.
>
> One thing I was wondering... are there two symbol_table s? One defined in
> the MrEd shared library and another in the PLT_MzScheme that is loaded by
> the fluxus-engine.
>
> Thanks for all your help, obviously, let me know what else I can send.
>
> -Scott
>
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