diff --git a/src/OSspecific/POSIX/printStack.C b/src/OSspecific/POSIX/printStack.C
index d94451e5aa..6a30b7a321 100644
--- a/src/OSspecific/POSIX/printStack.C
+++ b/src/OSspecific/POSIX/printStack.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2015 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -91,17 +91,17 @@ void printSourceFileAndLine
         // Convert offset into .so into offset into executable.
 
         void *addr;
-        sscanf(myAddress.c_str(), "%p",&addr);
+        sscanf(myAddress.c_str(), "%p", &addr);
 
         Dl_info info;
 
         dladdr(addr, &info);
 
-        unsigned long offset = ulong(info.dli_fbase);
+        uintptr_t offset = uintptr_t(info.dli_fbase);
 
         IStringStream addressStr(address.substr(2));
-        long addressValue = ReadHex<long>(addressStr);
-        long relativeAddress = addressValue-offset;
+        uintptr_t addressValue = ReadHex<uintptr_t>(addressStr);
+        intptr_t relativeAddress = addressValue - offset;
 
         // Reconstruct hex word from address
         OStringStream nStream;
diff --git a/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C b/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
index 58536fd928..31cef4111d 100644
--- a/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
+++ b/src/parallel/decompose/ptscotchDecomp/ptscotchDecomp.C
@@ -566,10 +566,10 @@ Foam::label Foam::ptscotchDecomp::decompose
     {
         Pout<< "SCOTCH_dgraphBuild with:" << nl
             << "xadjSize-1      : " << xadjSize-1 << nl
-            << "xadj            : " << long(xadj) << nl
-            << "velotab         : " << long(velotab.begin()) << nl
+            << "xadj            : " << uintptr_t(xadj) << nl
+            << "velotab         : " << uintptr_t(velotab.begin()) << nl
             << "adjncySize      : " << adjncySize << nl
-            << "adjncy          : " << long(adjncy) << nl
+            << "adjncy          : " << uintptr_t(adjncy) << nl
             << endl;
     }