catacomb.c, util.c: Publish negative constants correctly.

[pyke] / util.c

diff --git a/util.c b/util.c
index d613a7a..9332c8b 100644 (file)
--- a/util.c
+++ b/util.c
@@ -280,14 +280,14 @@ PyTypeObject *inittype(PyTypeObject *tyskel, PyTypeObject *meta)
 void setconstants(PyObject *mod, const struct nameval *c)
 {
   PyObject *x;
+  unsigned long u;
 
   while (c->name) {
-    if (c->value > LONG_MAX)
-      x = PyLong_FromUnsignedLong(c->value);
-    else
-      x = PyInt_FromLong(c->value);
-    PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x);
-    c++;
+    u = c->value;
+    if (u <= LONG_MAX) x = PyInt_FromLong(u);
+    else if (c->f&CF_SIGNED) x = PyInt_FromLong(-1 - (long)(ULONG_MAX - u));
+    else x = PyLong_FromUnsignedLong(u);
+    PyModule_AddObject(mod, (/*unconst*/ char *)c->name, x); c++;
   }
 }