fix gcc 4.2 compilation warnings.

git-svn-id: http://root.cern.ch/svn/root/trunk@20985 27541ba8-7e3a-0410-8455-c3a389f83636

alien/inc/TAlienJobStatusList.h

@@ -33,7 +33,7 @@ protected:
 
 public:
    TAlienJobStatusList() { gGridJobStatusList = this; }
-   virtual ~TAlienJobStatusList() { if (gGridJobStatusList == this); gGridJobStatusList=0;}
+   virtual ~TAlienJobStatusList() { if (gGridJobStatusList == this) gGridJobStatusList=0; }
    virtual void Print(Option_t *options) const;
    virtual void Print(Option_t *wildcard, Option_t *option) const { TCollection::Print(wildcard, option); }
 

krb5auth/src/TKSocket.cxx

@@ -106,7 +106,7 @@ TKSocket *TKSocket::Connect(const char *server, Int_t port)
 
    int sock = ks->fSocket->GetDescriptor();
    rc = krb5_sendauth(fgContext, &ks->fAuthContext, (krb5_pointer) &sock,
-                      "KRB5_TCP_Python_v1.0", fgClient, ks->fServer,
+                      (char *)"KRB5_TCP_Python_v1.0", fgClient, ks->fServer,
                       AP_OPTS_MUTUAL_REQUIRED,
                       &cksum_data,
                       0,           /* no creds, use ccache instead */

table/src/TTableMap.cxx

@@ -51,7 +51,7 @@
 
 ClassImp(TTableMap)
 
-TTableMap::TTableMap(const TTable *table) 
+TTableMap::TTableMap(const TTable *table)
           : fTable((TTable *)table)
 {
    //to be documented
@@ -64,7 +64,7 @@ void TTableMap::Streamer(TBuffer &R__b)
    TArrayL vecIO;
    if (R__b.IsReading()) {
       Version_t v =  R__b.ReadVersion();
-      if (v);
+      if (v) { }
       // read Table
       R__b >> fTable;
       // Read index array