[Pythonmac-SIG] Trying to build PyObjC on MacOSX -- what's missing? (fwd)

[Steven D. Majewski]

Is anyone else in Python land working on porting to OSX ? 



I'm trying to build the objective-C bindings (PyObjC) for Python
on MacOSX public beta.
In PyObjC, I:

* fixed (I hope) the call INSTMETH macro in objc_support.h to add missing
2nd arg.

* undated obsolete & missing message send: 
   	NSMethodSignature *methinfo;
   	[methinfo argumentInfoAtIndex:argn+2].type;
  to:
   	[methinfo getArgumentTypeAtIndex:argn+2];

* added <objc/hashtable.h> to objc_support.h includes 
 ( for obsolete NXHash* functions ) 

* changed some '#include's to '#import's to keep the warnings down to 
  a reasonable level so I could find other bugs. 


After that, it will compile on MacOSX public beta.


The final link command from the Makefile is:

cc  -bundle -undefined suppress  ObjC.o ObjCMethod.o ObjCObject.o
ObjCPointer.o ObjCRuntime.o objc_support.o OC_PythonBundle.o
OC_PythonInt.o OC_PythonObject.o OC_PythonString.o  -o ObjC.so


Trying to load it from Python, I get:

[localhost:~/Src/PyObjC] sdm% python
Python 2.0 (#3, 10/22/00, 12:04:10) 
[GCC Apple DevKit-based CPP 5.0] on Darwin1.2
Type "copyright", "credits" or "license" for more information.
>>> import ObjC
dyld: python Undefined symbols:
.objc_class_name_NSBundle
.objc_class_name_NSException
.objc_class_name_NSInvocation
.objc_class_name_NSMethodSignature
.objc_class_name_NSNumber
.objc_class_name_NSProxy
.objc_class_name_NSString
.objc_class_name_Protocol
_NSSelectorFromString
_NSStringFromSelector
_NXInitHashState
_NXNextHashState
__NSAddHandler2
__NSConstantStringClassReference
__NSExceptionObjectFromHandler2
__NSRemoveHandler2
_class_getInstanceMethod
_objc_getClasses
_objc_lookUpClass
_objc_msgSend
_objc_msgSendSuper
_objc_setMultithreaded
_object_getClassName
_sel_getUid
_sel_isMapped


linking again, adding -lobjc: 

[localhost:~/Src/PyObjC] sdm% python
Python 2.0 (#3, 10/22/00, 12:04:10) 
[GCC Apple DevKit-based CPP 5.0] on Darwin1.2
Type "copyright", "credits" or "license" for more information.
>>> import ObjC
dyld: python multiple definitions of symbol __objcInit
python definition of __objcInit
/usr/lib/libobjc.A.dylib(objc-runtime.o) definition of __objcInit


which is the same thing I get if I try to link with 
"-framework Foundation" instead.

'otool -vR /usr/lib/libobjc_profile.A.dylib' tells me that 
some of those symbols are "undefined [lazy]"  -- what does
that mean?


-- Steve Majewski <sdm7g@Virginia.EDU>