Make sure that Int8(16,32,64) is signed

Better fix for previous build issue

ndb/include/ndb_types.h

@@ -21,11 +21,11 @@
 #ifndef NDB_TYPES_H
 #define NDB_TYPES_H
 
-typedef          char  Int8;
+typedef   signed char  Int8;
 typedef unsigned char  Uint8;
-typedef          short Int16;
+typedef   signed short Int16;
 typedef unsigned short Uint16;
-typedef          int   Int32;
+typedef   signed int   Int32;
 typedef unsigned int   Uint32;
 
 typedef unsigned int UintR;
@@ -45,10 +45,10 @@ typedef uintptr_t UintPtr;
 
 #if defined(WIN32) || defined(NDB_WIN32)
 typedef unsigned __int64 Uint64;
-typedef          __int64 Int64;
+typedef   signed __int64 Int64;
 #else
 typedef unsigned long long Uint64;
-typedef          long long Int64;
+typedef   signed long long Int64;
 #endif
 
 #endif

ndb/src/ndbapi/NdbOperationExec.cpp

@@ -192,7 +192,7 @@ NdbOperation::prepareSend(Uint32 aTC_ConnectPtr, Uint64 aTransId)
   OperationType tOperationType = theOperationType;
   Uint32 tTupKeyLen = theTupKeyLen;
   Uint8 abortOption =
-    m_abortOption != (Int8)-1 ? m_abortOption : theNdbCon->m_abortOption;
+    m_abortOption != -1 ? m_abortOption : theNdbCon->m_abortOption;
 
   tcKeyReq->setDirtyFlag(tReqInfo, tDirtyIndicator);
   tcKeyReq->setOperationType(tReqInfo, tOperationType);
@@ -543,7 +543,7 @@ NdbOperation::receiveTCKEYREF( NdbApiSignal* aSignal)
   }//if
 
   AbortOption ao = (AbortOption)
-    (m_abortOption != (Int8)-1 ? m_abortOption : theNdbCon->m_abortOption);
+    (m_abortOption != -1 ? m_abortOption : theNdbCon->m_abortOption);
   theReceiver.m_received_result_length = ~0;
 
   theStatus = Finished;