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Ted Horst writes in psa-members@python.org:

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This is a patch that Bill Bummgarner did for 1.4 that hasn't made its
way into the distribution yet.  This is important if you want to use
the ObjC module.
This commit is contained in:
Guido van Rossum 1998-08-24 14:15:44 +00:00
parent 747e1cade6
commit ab076fdb6f
1 changed files with 41 additions and 0 deletions
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41
Python/importdl.c
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@ -120,6 +120,18 @@ typedef FARPROC dl_funcptr;
#ifdef NeXT
#define DYNAMIC_LINK
#define USE_RLD
/* Define this to 1 if you want be able to load ObjC modules as well:
it switches between two different way of loading modules on the NeXT,
one that directly interfaces with the dynamic loader (rld_load(), which
does not correctly load ObjC object files), and another that uses the
ObjC runtime (objc_loadModules()) to do the job.
You'll have to add ``-ObjC'' to the compiler flags if you set this to 1.
*/
#define HANDLE_OBJC_MODULES 1
#if HANDLE_OBJC_MODULES
#include <objc/Object.h>
#include <objc/objc-load.h>
#endif
#define SHORT_EXT ".so"
#define LONG_EXT "module.so"
#endif
@ -584,9 +596,38 @@ _PyImport_LoadDynamicModule(name, pathname, fp)
errorStream = NXOpenMemory(NULL, 0, NX_WRITEONLY);
filenames[0] = pathname;
filenames[1] = NULL;
#if HANDLE_OBJC_MODULES
/* The following very bogus line of code ensures that
objc_msgSend, etc are linked into the binary. Without
it, dynamic loading of a module that includes objective-c
method calls will fail with "undefined symbol _objc_msgSend()".
This remains true even in the presence of the -ObjC flag
to the compiler
*/
[Object name];
/* objc_loadModules() dynamically loads the object files
indicated by the paths in filenames. If there are any
errors generated during loading -- typically due to the
inability to find particular symbols -- an error message
will be written to errorStream.
It returns 0 if the module is successfully loaded, 1
otherwise.
*/
ret = !objc_loadModules(filenames, errorStream,
NULL, &new_header, NULL);
#else /* !HANDLE_OBJC_MODULES */
ret = rld_load(errorStream, &new_header,
filenames, NULL);
#endif /* HANDLE_OBJC_MODULES */
/* extract the error messages for the exception */
if(!ret) {
char *streamBuf;