Suppressed warnings about signedness of characters when compiling under GCC 4.0.x.

See http://www.zope.org/Collectors/Zope/2027.

NEWS.txt

@@ -10,6 +10,9 @@ development) since ZODB 3.4's last public release:
 PersistentMapping
 -----------------
 
+- (3.4.3b1) Suppressed warnings about signedness of characters when compiling
+  under GCC 4.0.x (http://www.zope.org/Collectors/Zope/2027).
+
 - (3.4.3b1) Made new tests ``test_mapping`` conform to the requirements for
   a ``dict`` initializer in Python 2.3.x.
 

src/BTrees/_fsBTree.c

@@ -45,7 +45,7 @@ typedef unsigned char char6[6];
 #define DECREF_KEY(KEY)
 #define INCREF_KEY(k)
 #define COPY_KEY(KEY, E) (*(KEY)=*(E), (KEY)[1]=(E)[1])
-#define COPY_KEY_TO_OBJECT(O, K) O=PyString_FromStringAndSize(K,2)
+#define COPY_KEY_TO_OBJECT(O, K) O=PyString_FromStringAndSize((const char*)K,2)
 #define COPY_KEY_FROM_ARG(TARGET, ARG, STATUS) \
   if (KEY_CHECK(ARG)) memcpy(TARGET, PyString_AS_STRING(ARG), 2); else { \
       PyErr_SetString(PyExc_TypeError, "expected two-character string key"); \
@@ -59,7 +59,7 @@ typedef unsigned char char6[6];
 #define DECREF_VALUE(k)
 #define INCREF_VALUE(k)
 #define COPY_VALUE(V, E) (memcpy(V, E, 6))
-#define COPY_VALUE_TO_OBJECT(O, K) O=PyString_FromStringAndSize(K,6)
+#define COPY_VALUE_TO_OBJECT(O, K) O=PyString_FromStringAndSize((const char*)K,6)
 #define COPY_VALUE_FROM_ARG(TARGET, ARG, STATUS) \
   if ((PyString_Check(ARG) && PyString_GET_SIZE(ARG)==6)) \
       memcpy(TARGET, PyString_AS_STRING(ARG), 6); else { \

src/persistent/TimeStamp.c

@@ -218,7 +218,7 @@ TimeStamp_timeTime(TimeStamp *self)
 static PyObject *
 TimeStamp_raw(TimeStamp *self)
 {
-    return PyString_FromStringAndSize(self->data, 8);
+    return PyString_FromStringAndSize((const char*)self->data, 8);
 }
 
 static PyObject *
@@ -261,7 +261,7 @@ TimeStamp_laterThan(TimeStamp *self, PyObject *obj)
 	    new[i] = 0;
 	else {
 	    new[i]++;
-	    return TimeStamp_FromString(new);
+	    return TimeStamp_FromString((const char*)new);
 	}
     }