A question about Objective C running without any Frameworks

[Michael Durket]

Does anyone here know if an Objective C program, written to only link  
with libobjc and no other Objective C
frameworks (so that the programs can only use whatever objects reside  
in libobjc like Object I presume)
will operate correctly in a multi-threaded environment? Put another  
way, can Objective C using only libobjc
work everywhere C can - i.e. as an Apache module, or a device driver  
(assuming proper interface code),
or as system code?

Or is libobjc not re-entrant, etc.? I'm not talking about writing only  
straight C in Objective C - I want to use its
object features in a relatively standalone fashion as I can do with C  
code (presuming that the system routines
called in libobjc like malloc exist of course).