mc path too short in OSX?

[Ben Williams <ben blackbeltsystems com>]

Running precompiled mc 4.6.1 from the Rudix package under OSX 10.5.2.  
Tried to install it by compiling pkg-config, glib, gettext and mc, but  
as per usual, that didn't work, glib install screwed up. So I went  
with the precompiled version.

In general, it seems to do the right thing. However:

I found that I cannot cd to directories that are fairly shallow...

/Users/abcdefghijk1/src/bens/dbt/release1.0

...I get a (too long) error message and the display is messed up,  
which I fix with a double ctrl-o;
...further, that when I mod the dir name to be shorter so I can cd to  
it:

/Users/abcdefghijk1/src/bens/dbt/r1.0

...then when I use F4 to edit, the wrong file is edited.

If I move the dirs back down so the path is shorter:

/Users/abcdefghijk1/dbt/r1.0

...then everything works as expected.

The original problem path is about 40-odd characters long. This  
seems... way, way too short to reasonably cause a problem. Like,  
1970's-era short.

Anyone have any ideas? I checked the FAQ, "path" isn't in it. :(

Thanks.

--Ben