diff --git a/include/internal/catch_common.cpp b/include/internal/catch_common.cpp
index 12968515..6cd1b46d 100644
--- a/include/internal/catch_common.cpp
+++ b/include/internal/catch_common.cpp
@@ -106,4 +106,9 @@ namespace Catch {
 #endif
         return os;
     }
+
+    bool isTrue( bool value ){ return value; }
+    bool alwaysTrue() { return true; }
+    bool alwaysFalse() { return false; }
+
 }
diff --git a/include/internal/catch_common.h b/include/internal/catch_common.h
index 87b7020f..f86af403 100644
--- a/include/internal/catch_common.h
+++ b/include/internal/catch_common.h
@@ -46,12 +46,12 @@ namespace Catch {
     };
 
     template<typename ContainerT>
-    inline void deleteAll( ContainerT& container ) {
+    void deleteAll( ContainerT& container ) {
         for( auto p : container )
             delete p;
     }
     template<typename AssociativeContainerT>
-    inline void deleteAllValues( AssociativeContainerT& container ) {
+    void deleteAllValues( AssociativeContainerT& container ) {
         for( auto const& kvp : container )
             delete kvp.second;
     }
@@ -96,9 +96,9 @@ namespace Catch {
     std::ostream& operator << ( std::ostream& os, SourceLineInfo const& info );
 
     // This is just here to avoid compiler warnings with macro constants and boolean literals
-    inline bool isTrue( bool value ){ return value; }
-    inline bool alwaysTrue() { return true; }
-    inline bool alwaysFalse() { return false; }
+    bool isTrue( bool value );
+    bool alwaysTrue();
+    bool alwaysFalse();
 
     void seedRng( IConfig const& config );
     unsigned int rngSeed();
diff --git a/include/internal/catch_debugger.cpp b/include/internal/catch_debugger.cpp
index e857717d..c7d66375 100644
--- a/include/internal/catch_debugger.cpp
+++ b/include/internal/catch_debugger.cpp
@@ -105,7 +105,7 @@
     }
 #else
     namespace Catch {
-       inline bool isDebuggerActive() { return false; }
+       bool isDebuggerActive() { return false; }
     }
 #endif // Platform
 
diff --git a/include/internal/catch_registry_hub.cpp b/include/internal/catch_registry_hub.cpp
index 71967f58..4d34311c 100644
--- a/include/internal/catch_registry_hub.cpp
+++ b/include/internal/catch_registry_hub.cpp
@@ -69,7 +69,7 @@ namespace Catch {
         };
 
         // Single, global, instance
-        inline RegistryHub*& getTheRegistryHub() {
+        RegistryHub*& getTheRegistryHub() {
             static RegistryHub* theRegistryHub = nullptr;
             if( !theRegistryHub )
                 theRegistryHub = new RegistryHub();
diff --git a/include/internal/catch_test_case_info.cpp b/include/internal/catch_test_case_info.cpp
index 5ef88593..04bebecd 100644
--- a/include/internal/catch_test_case_info.cpp
+++ b/include/internal/catch_test_case_info.cpp
@@ -16,7 +16,7 @@
 
 namespace Catch {
 
-    inline TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
+    TestCaseInfo::SpecialProperties parseSpecialTag( std::string const& tag ) {
         if( startsWith( tag, '.' ) ||
             tag == "hide" ||
             tag == "!hide" )
@@ -32,10 +32,10 @@ namespace Catch {
         else
             return TestCaseInfo::None;
     }
-    inline bool isReservedTag( std::string const& tag ) {
+    bool isReservedTag( std::string const& tag ) {
         return parseSpecialTag( tag ) == TestCaseInfo::None && tag.size() > 0 && !std::isalnum( tag[0] );
     }
-    inline void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
+    void enforceNotReservedTag( std::string const& tag, SourceLineInfo const& _lineInfo ) {
         CATCH_ENFORCE( !isReservedTag(tag),
                       "Tag name: [" << tag << "] is not allowed.\n"
                       << "Tag names starting with non alpha-numeric characters are reserved\n"