Glue for the python shared library: an init routine that remembers

where we're loaded from and PyMac_AddLibResources() which adds that
file to the resource file list.

Mac/Python/macshlglue.c

+/*
+** mac shared lib glue.
+**
+** Partially stolen from MW Startup.c, which is
+**	Copyright  1993 metrowerks inc. All Rights Reserved.
+*/
+
+#include <CPlusLibPPC.h>
+#include <Quickdraw.h>
+#include <SegLoad.h>
+#include <setjmp.h>
+#include <FragLoad.h>
+#include <Files.h>
+#include <Resources.h>
+
+#include <stdio.h>
+
+char *macstrerror();
+
+DestructorChain	*__local_destructor_chain;	/*	chain of local objects that need destruction	*/
+
+	/*	public data		*/
+
+QDGlobals qd;						/*	define the Quickdraw globals here!	*/
+jmp_buf __program_exit;				/*	exit() does a longjmp() to here		*/
+void (*__atexit_hook)(void);		/*	atexit()  sets this up if it is ever called	*/
+void (*___atexit_hook)(void);		/*	_atexit() sets this up if it is ever called	*/
+int __aborting;						/*	abort() sets this and longjmps to __program_exit	*/
+
+int library_fss_valid;
+FSSpec library_fss;
+/*
+** Routine called upon fragment load. We attempt to save the FSSpec from which we're
+** loaded. We always return noErr (we just continue without the resources).
+*/
+OSErr
+__sinit(InitBlockPtr data)
+{
+	if ( data == NULL ) return noErr;
+	if ( data->fragLocator.where == kOnDiskFlat ) {
+		library_fss = *data->fragLocator.u.onDisk.fileSpec;
+		library_fss_valid = 1;
+	} else if ( data->fragLocator.where == kOnDiskSegmented ) {
+		library_fss = *data->fragLocator.u.inSegs.fileSpec;
+		library_fss_valid = 1;
+	}
+	return noErr;
+}
+
+/*
+** Insert the library resources into the search path. Put them after
+** the resources from the application (which we assume is the current
+** resource file). Again, we ignore errors.
+*/
+void
+PyMac_AddLibResources()
+{
+	OSErr err;
+	short fd, curfd;
+	
+	if ( !library_fss_valid ) 
+		return;
+	fd = FSpOpenResFile(&library_fss, fsRdWrShPerm);
+}
+