diff --git a/Modules/mmapmodule.c b/Modules/mmapmodule.c
index c1cc013..c48278f 100644
--- a/Modules/mmapmodule.c
+++ b/Modules/mmapmodule.c
@@ -818,7 +818,7 @@
 	m_obj->data = mmap(NULL, map_size, 
 			   prot, flags,
 			   fd, 0);
-	if (m_obj->data == (void *)-1)
+	if (m_obj->data == (char *)-1)
 	{
 		Py_DECREF(m_obj);
 		PyErr_SetFromErrno(mmap_module_error);
diff --git a/Objects/unicodeobject.c b/Objects/unicodeobject.c
index f3cab05..b3c8ba4 100644
--- a/Objects/unicodeobject.c
+++ b/Objects/unicodeobject.c
@@ -671,12 +671,10 @@
         case 0:
             errmsg = "unexpected code byte";
 	    goto utf8Error;
-            break;
 
         case 1:
             errmsg = "internal error";
 	    goto utf8Error;
-            break;
 
         case 2:
             if ((s[1] & 0xc0) != 0x80) {
@@ -740,7 +738,6 @@
             /* Other sizes are only needed for UCS-4 */
             errmsg = "unsupported Unicode code range";
 	    goto utf8Error;
-	    break;
         }
         s += n;
 	continue;
diff --git a/Parser/tokenizer.c b/Parser/tokenizer.c
index 6ae5084..b783e80 100644
--- a/Parser/tokenizer.c
+++ b/Parser/tokenizer.c
@@ -445,7 +445,6 @@
 			switch (c3) {
 			case '=':
 				return LEFTSHIFTEQUAL;
-				break;
 			}
 			break;
 		}
@@ -456,7 +455,6 @@
 			switch (c3) {
 			case '=':
 				return RIGHTSHIFTEQUAL;
-				break;
 			}
 			break;
 		}
@@ -467,7 +465,6 @@
 			switch (c3) {
 			case '=':
 				return DOUBLESTAREQUAL;
-				break;
 			}
 			break;
 		}
diff --git a/Python/ceval.c b/Python/ceval.c
index 4f4a646..d76c6f2 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -2146,7 +2146,6 @@
 			opcode = NEXTOP();
 			oparg = oparg<<16 | NEXTARG();
 			goto dispatch_opcode;
-			break;
 
 		default:
 			fprintf(stderr,