Reverted the previous change trying to fix signed/unsigned issues (as the...

Reverted the previous change trying to fix signed/unsigned issues (as the length field is int in SLC5 and size_t in SLC6) and added the proper compilation options in Cmake.

xrootd/CMakeLists.txt

@@ -41,6 +41,8 @@ set (XRDXCASTOR2FS_LIB_SRC_FILES
   XrdxCastorClient.cpp)
 set_property(SOURCE XrdxCastor2Fs.cpp
   PROPERTY COMPILE_FLAGS -Wno-write-strings)
+set_property(SOURCE XrdxCastor2ServerAcc.cpp
+  PROPERTY COMPILE_FLAGS -Wno-sign-compare)
 add_library (XrdxCastor2Fs SHARED ${XRDXCASTOR2FS_LIB_SRC_FILES})
 set_target_properties (XrdxCastor2Fs PROPERTIES
   SOVERSION ${MAJOR_CASTOR_VERSION}

xrootd/XrdxCastor2ServerAcc.cpp

@@ -419,7 +419,7 @@ XrdxCastor2ServerAcc::SignBase64( unsigned char* input,
   int cnt = 0;
 
   // Remove the backslash from the signature buffer 
-  for ( size_t i = 0; (i + 1) <= bptr->length; i++ ) {
+  for ( int i = 0; i <= ( bptr->length - 1 ); i++ ) {
     if ( buff[i] != '\n' ) {
       signed_signature_buff[cnt] = buff[i];
       cnt++;