Properly re-export loaded module symbols as global

This relates to Bug 1995

src/pythonize.cpp

@@ -202,7 +202,7 @@ PyObject *importModule (char *moduleName)
 
                 // returns an object from a loaded module
                 // you must decref the object returned when done with it (new reference returned)
-PyObject *getNewObjectRef (PyObject *module, char *object)
+PyObject *getNewObjectRef (PyObject *module, const char *object)
 {
     return _pythonize ? _pythonize->getNewObjectRef (module, object) : NULL;
 }

src/pythonize.h

@@ -49,7 +49,7 @@ public:
 
     // returns an object from a loaded module
     // you must decref the object returned when done with it (new reference returned)
-    PyObject *getNewObjectRef (PyObject *module, char *object) { return PyObject_GetAttrString (module, object); }
+    PyObject *getNewObjectRef (PyObject *module, const char *object) { return PyObject_GetAttrString (module, object); }
 
     int getPythonInit () { return pythonInit; }
 
@@ -84,7 +84,7 @@ extern "C" {
 
     // returns an object from a loaded module
     // you must decref the object returned when done with it (new reference returned)
-    PyObject *getNewObjectRef (PyObject *module, char *object);
+    PyObject *getNewObjectRef (PyObject *module, const char *object);
 
     bool getPythonInit();
 

src/tdedistutils.py

@@ -896,15 +896,19 @@ class BuildKControlModule(Command):
 #include <tqstring.h>
 #include <sip.h>
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif  // _GNU_SOURCE
+#include <dlfcn.h>
+
 #define MODULE_DIR "%(moduledir)s"
 #define EXTRA_MODULE_DIR "%(extramodule)s"
 #define MODULE_NAME "%(modulename)s"
 #define FACTORY "%(factoryfunction)s"
 #define CPP_FACTORY %(factoryfunction)s
-#define LIB_PYTHON "libpython%(python_version)s.so"
 #define debug 1
 
-static TDECModule *report_error(char *msg) {
+static TDECModule *report_error(const char *msg) {
     if (debug) printf ("error: %%s\n", msg);
     return NULL;
 }
@@ -914,15 +918,17 @@ static TDECModule* return_instance( TQWidget *parent, const char *name ) {
     PyObject *pyTDECModuleTuple;
     PyObject *pyTDECModule;
     Pythonize *pyize;  // Pythonize object to manage the Python interpreter.
-    int isErr;
 
     // Try to determine what py script we're loading. Note that "name"
     // typically appears to be NULL.
     TQString script(MODULE_NAME);
 
-    // Reload libpython, but this time tell the runtime linker to make the
+    // Reload this module, but this time tell the runtime linker to make the
     // symbols global and available for later loaded libraries/module.
-    KLibLoader::self()->globalLibrary(LIB_PYTHON);
+    Dl_info info;
+    if (!dladdr((const void *)(&return_instance), &info) || !info.dli_fname ||  !dlopen(info.dli_fname, RTLD_GLOBAL|RTLD_NOW)) {
+        return report_error ("***Unable to export symbols\n");
+    }
 
     // Start the interpreter.
     pyize = initialize();
@@ -997,7 +1003,6 @@ static TDECModule* return_instance( TQWidget *parent, const char *name ) {
     Py_INCREF(PyTuple_GET_ITEM(pyTDECModuleTuple,0));
 
     // convert the TDECModule PyObject to a real C++ TDECModule *.
-    isErr = 0;
     pyTDECModule = PyTuple_GET_ITEM(pyTDECModuleTuple,1);
     tdecmodule = (TDECModule *)PyLong_AsVoidPtr(pyTDECModule);
     if(!tdecmodule) {