diff --git a/etc/config.csh/settings b/etc/config.csh/settings
index d550d969bf..c618f9f21f 100644
--- a/etc/config.csh/settings
+++ b/etc/config.csh/settings
@@ -240,6 +240,9 @@ case ThirdParty:
     case Gcc61:
         set gcc_version=gcc-6.1.0
         breaksw
+    case Gcc81:
+        set gcc_version=gcc-8.1.0
+        breaksw
     case Clang:
         # Using clang - not gcc
         setenv WM_CC 'clang'
diff --git a/etc/config.sh/compiler b/etc/config.sh/compiler
index 9042a5f176..dac2c1e338 100644
--- a/etc/config.sh/compiler
+++ b/etc/config.sh/compiler
@@ -2,7 +2,7 @@
 # =========                 |
 # \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
 #  \\    /   O peration     |
-#   \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+#   \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
 #    \\/     M anipulation  |
 #------------------------------------------------------------------------------
 # License
@@ -57,6 +57,9 @@ OpenFOAM | ThirdParty)
     Gcc61)
         gcc_version=gcc-6.1.0
         ;;
+    Gcc81)
+        gcc_version=gcc-8.1.0
+        ;;
     Clang)
         # Using clang - not gcc
         export WM_CC='clang'
diff --git a/src/OpenFOAM/containers/Lists/List/ListI.H b/src/OpenFOAM/containers/Lists/List/ListI.H
index 5709c258ec..e760ae43bd 100644
--- a/src/OpenFOAM/containers/Lists/List/ListI.H
+++ b/src/OpenFOAM/containers/Lists/List/ListI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -28,7 +28,7 @@ License
 template<class T>
 inline void Foam::List<T>::alloc()
 {
-    if (this->size_)
+    if (this->size_ > 0)
     {
         this->v_ = new T[this->size_];
     }
diff --git a/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H b/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
index e859d043de..4df923d615 100644
--- a/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
+++ b/src/OpenFOAM/containers/Lists/PackedList/PackedListI.H
@@ -546,8 +546,6 @@ inline void Foam::PackedList<nBits>::const_iterator::operator=
     {
         this->index_ = this->list_->size_;
     }
-
-    return *this;
 }
 
 
diff --git a/src/OpenFOAM/db/typeInfo/typeInfo.H b/src/OpenFOAM/db/typeInfo/typeInfo.H
index 71155aeb8f..542a27bea7 100644
--- a/src/OpenFOAM/db/typeInfo/typeInfo.H
+++ b/src/OpenFOAM/db/typeInfo/typeInfo.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -88,7 +88,7 @@ inline To& dynamicCast(From& r)
     {
         return dynamic_cast<To&>(r);
     }
-    catch (std::bad_cast)
+    catch (const std::bad_cast&)
     {
         FatalErrorInFunction
             << "Attempt to cast type " << typeid(r).name()
@@ -109,7 +109,7 @@ inline To& refCast(From& r)
     {
         return dynamic_cast<To&>(r);
     }
-    catch (std::bad_cast)
+    catch (const std::bad_cast&)
     {
         FatalErrorInFunction
             << "Attempt to cast type " << r.type()
diff --git a/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H b/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
index 940294b8e7..be204399fd 100644
--- a/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
+++ b/src/OpenFOAM/primitives/VectorSpace/VectorSpace.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2016 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -159,9 +159,6 @@ public:
         //- Construct from Istream
         VectorSpace(Istream&);
 
-        //- Construct as copy
-        inline VectorSpace(const VectorSpace<Form, Cmpt, Ncmpts>&);
-
         //- Construct as copy of a VectorSpace with the same size
         template<class Form2, class Cmpt2>
         inline explicit VectorSpace(const VectorSpace<Form2, Cmpt2, Ncmpts>&);
@@ -190,7 +187,6 @@ public:
         inline const Cmpt& operator[](const direction) const;
         inline Cmpt& operator[](const direction);
 
-        inline void operator=(const VectorSpace<Form, Cmpt, Ncmpts>&);
         inline void operator+=(const VectorSpace<Form, Cmpt, Ncmpts>&);
         inline void operator-=(const VectorSpace<Form, Cmpt, Ncmpts>&);
 
diff --git a/src/OpenFOAM/primitives/VectorSpace/VectorSpaceI.H b/src/OpenFOAM/primitives/VectorSpace/VectorSpaceI.H
index dce64d4258..afd654cd35 100644
--- a/src/OpenFOAM/primitives/VectorSpace/VectorSpaceI.H
+++ b/src/OpenFOAM/primitives/VectorSpace/VectorSpaceI.H
@@ -48,16 +48,6 @@ inline VectorSpace<Form, Cmpt, Ncmpts>::VectorSpace(const Foam::zero)
 }
 
 
-template<class Form, class Cmpt, direction Ncmpts>
-inline VectorSpace<Form, Cmpt, Ncmpts>::VectorSpace
-(
-    const VectorSpace<Form, Cmpt, Ncmpts>& vs
-)
-{
-    VectorSpaceOps<Ncmpts,0>::eqOp(*this, vs, eqOp<Cmpt>());
-}
-
-
 template<class Form, class Cmpt, direction Ncmpts>
 template<class Form2, class Cmpt2>
 inline VectorSpace<Form, Cmpt, Ncmpts>::VectorSpace
@@ -285,16 +275,6 @@ ConstBlock<SubVector, BStart>::operator()
 }
 
 
-template<class Form, class Cmpt, direction Ncmpts>
-inline void VectorSpace<Form, Cmpt, Ncmpts>::operator=
-(
-    const VectorSpace<Form, Cmpt, Ncmpts>& vs
-)
-{
-    VectorSpaceOps<Ncmpts,0>::eqOp(*this, vs, eqOp<Cmpt>());
-}
-
-
 template<class Form, class Cmpt, direction Ncmpts>
 inline void VectorSpace<Form, Cmpt, Ncmpts>::operator+=
 (
diff --git a/src/thermophysicalModels/specie/reaction/Reactions/Reaction/Reaction.H b/src/thermophysicalModels/specie/reaction/Reactions/Reaction/Reaction.H
index d96134aac9..13f6d9a537 100644
--- a/src/thermophysicalModels/specie/reaction/Reactions/Reaction/Reaction.H
+++ b/src/thermophysicalModels/specie/reaction/Reactions/Reaction/Reaction.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -242,7 +242,6 @@ public:
 
         // Access
 
-            inline word& name();
             inline const word& name() const;
 
             // - Access to basic components of the reaction
diff --git a/src/thermophysicalModels/specie/reaction/Reactions/Reaction/ReactionI.H b/src/thermophysicalModels/specie/reaction/Reactions/Reaction/ReactionI.H
index 55287cbfd6..eba046f644 100644
--- a/src/thermophysicalModels/specie/reaction/Reactions/Reaction/ReactionI.H
+++ b/src/thermophysicalModels/specie/reaction/Reactions/Reaction/ReactionI.H
@@ -2,7 +2,7 @@
   =========                 |
   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
    \\    /   O peration     |
-    \\  /    A nd           | Copyright (C) 2011-2017 OpenFOAM Foundation
+    \\  /    A nd           | Copyright (C) 2011-2018 OpenFOAM Foundation
      \\/     M anipulation  |
 -------------------------------------------------------------------------------
 License
@@ -32,13 +32,6 @@ namespace Foam
 
 // * * * * * * * * * * * * * * * Member Functions  * * * * * * * * * * * * * //
 
-template<class ReactionThermo>
-inline word& Reaction<ReactionThermo>::name()
-{
-    return name_;
-}
-
-
 template<class ReactionThermo>
 inline const word& Reaction<ReactionThermo>::name() const
 {