diff --git a/applications/utilities/mesh/generation/foamyQuadMesh/Allwmake b/applications/utilities/mesh/generation/foamyQuadMesh/Allwmake
index 4fb5afda15..3620addd38 100755
--- a/applications/utilities/mesh/generation/foamyQuadMesh/Allwmake
+++ b/applications/utilities/mesh/generation/foamyQuadMesh/Allwmake
@@ -4,6 +4,7 @@ set -x
 
 if [ -d "$CGAL_ARCH_PATH" ]
 then
+    wmake libso ../foamyHexMesh/conformalVoronoiMesh
     wmake libso conformalVoronoi2DMesh
     wmake
 fi
diff --git a/etc/config/settings.csh b/etc/config/settings.csh
index c62918ea77..5fdee1186d 100644
--- a/etc/config/settings.csh
+++ b/etc/config/settings.csh
@@ -226,10 +226,10 @@ case ThirdParty:
         breaksw
     case Gcc48:
     case Gcc48++0x:
-        set gcc_version=gcc-4.8.0
-        set gmp_version=gmp-5.0.4
-        set mpfr_version=mpfr-3.1.0
-        set mpc_version=mpc-0.9
+        set gcc_version=gcc-4.8.1
+        set gmp_version=gmp-5.1.2
+        set mpfr_version=mpfr-3.1.2
+        set mpc_version=mpc-1.0.1
         breaksw
     case Gcc47:
     case Gcc47++0x:
@@ -397,7 +397,7 @@ case SYSTEMOPENMPI:
     breaksw
 
 case OPENMPI:
-    setenv FOAM_MPI openmpi-1.6.3
+    setenv FOAM_MPI openmpi-1.6.5
     # optional configuration tweaks:
     _foamSource `$WM_PROJECT_DIR/bin/foamEtcFile config/openmpi.csh`
 
diff --git a/etc/config/settings.sh b/etc/config/settings.sh
index 9dcc6ffe0c..ec67a7c000 100644
--- a/etc/config/settings.sh
+++ b/etc/config/settings.sh
@@ -247,10 +247,10 @@ OpenFOAM | ThirdParty)
         mpc_version=mpc-0.9
         ;;
     Gcc48 | Gcc48++0x)
-        gcc_version=gcc-4.8.0
-        gmp_version=gmp-5.0.4
-        mpfr_version=mpfr-3.1.0
-        mpc_version=mpc-0.9
+        gcc_version=gcc-4.8.1
+        gmp_version=gmp-5.1.2
+        mpfr_version=mpfr-3.1.2
+        mpc_version=mpc-1.0.1
         ;;
     Gcc47 | Gcc47++0x)
         gcc_version=gcc-4.7.2
@@ -418,7 +418,7 @@ SYSTEMOPENMPI)
     ;;
 
 OPENMPI)
-    export FOAM_MPI=openmpi-1.6.3
+    export FOAM_MPI=openmpi-1.6.5
     # optional configuration tweaks:
     _foamSource `$WM_PROJECT_DIR/bin/foamEtcFile config/openmpi.sh`
 
diff --git a/src/fvAgglomerationMethods/Allwmake b/src/fvAgglomerationMethods/Allwmake
index 071172d2b9..982547125f 100755
--- a/src/fvAgglomerationMethods/Allwmake
+++ b/src/fvAgglomerationMethods/Allwmake
@@ -5,7 +5,7 @@ set -x
 
 export ParMGridGen=$WM_THIRD_PARTY_DIR/ParMGridGen-1.0
 
-if [ -d "$ParMGridGen/MGridGen/Lib" ]
+if [ -e "$FOAM_LIBBIN/libMGridGen.so" ]
 then
     wmake $makeType MGridGenGamgAgglomeration
 fi
diff --git a/src/thermophysicalModels/laminarFlameSpeed/Gulders/Gulders.C b/src/thermophysicalModels/laminarFlameSpeed/Gulders/Gulders.C
index 9bdbaee7f6..051d1b2f1f 100644
--- a/src/thermophysicalModels/laminarFlameSpeed/Gulders/Gulders.C
+++ b/src/thermophysicalModels/laminarFlameSpeed/Gulders/Gulders.C
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2012 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2013 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -217,7 +217,7 @@ Foam::laminarFlameSpeedModels::Gulders::operator()() const
             dimensionedScalar
             (
                 psiuReactionThermo_.lookup("stoichiometricAirFuelMassRatio")
-            )*ft/((1 + SMALL) - ft)
+            )*ft/max(1 - ft, SMALL)
         );
     }
     else