From Gerri:

Unfortunately I forgot that there are AliEns around with old xrootd v3.0.4
which is intermediate and was not detected correctly after the patch.
Now I have checked with all possible variants: 3.0.4, 3.1.0, 3.2.x and trunk.


git-svn-id: http://root.cern.ch/svn/root/trunk@48141 27541ba8-7e3a-0410-8455-c3a389f83636

configure

@@ -4712,7 +4712,11 @@ if test "x$enable_xrootd" = "xyes" ; then
    libxrdoucbjr=""
    # 
    # Release date of version 3.1.0 containing the new lib packaging
-   decrefutils=20111021
+   decreftre=300000000
+   decrefutils=300010000
+   if [ $decver -lt $decreftre ] ; then
+      decrefutils=20111021
+   fi
    decrefnetut=20100729
    if [ $decver -ge $decrefutils ] ; then
       xrdlibs="libXrdMain libXrdUtils libXrdClient" 

proof/proofd/inc/XpdSysDNS.h

@@ -4,7 +4,7 @@
 //
 #include "XrdProofdXrdVers.h"
 
-#if ROOTXRDVERS < ROOT_XrdUtils
+#if defined(ROOT_XrdNoUtils)
 #define XrdSysDNS           XrdNetDNS
 #include "XrdNet/XrdNetDNS.hh"
 #else

proof/proofd/inc/XrdProofdXrdVers.h

@@ -22,6 +22,11 @@
 #define ROOT_PhyConnNoReuse  20110126
 
 // This is when the header and library packaging changed (v3.1.0)
-#define ROOT_XrdUtils        20111021
+#if (ROOTXRDVERS < 30000000 && ROOTXRDVERS < 20111021) || \
+    (ROOTXRDVERS >= 30000000 && ROOTXRDVERS < 300010000)
+#   define ROOT_XrdNoUtils
+#else
+#   undef ROOT_XrdNoUtils
+#endif
 
 #endif

proof/proofd/src/XrdProofConn.cxx

@@ -1259,7 +1259,7 @@ XrdSecProtocol *XrdProofConn::Authenticate(char *plist, int plsiz)
       // Initialize the security library plugin, if needed
       XrdOucString libsec;
       if (!fgSecPlugin) { 
-#if ROOTXRDVERS >= ROOT_XrdUtils
+#if !defined(ROOT_XrdNoUtils)
          libsec = "libXrdSec";
          libsec += LT_MODULE_EXT;
 #else