GCC 4.5 compatibility: can't default some functions in class body.

src/Platform/GlxApplication.h

@@ -78,9 +78,11 @@ class GlxApplication: public AbstractXApplication {
     protected:
         /* Nobody will need to have (and delete) GlxApplication*, thus this is
            faster than public pure virtual destructor */
-        ~GlxApplication() = default;
+        ~GlxApplication();
 };
 
+GlxApplication::~GlxApplication() = default;
+
 /** @hideinitializer
 @brief Entry point for GLX-based applications
 @param className Class name

src/Platform/XEglApplication.h

@@ -79,9 +79,11 @@ class XEglApplication: public AbstractXApplication {
     protected:
         /* Nobody will need to have (and delete) XEglApplication*, thus this is
            faster than public pure virtual destructor */
-        ~XEglApplication() = default;
+        ~XEglApplication();
 };
 
+XEglApplication::~XEglApplication() = default;
+
 /** @hideinitializer
 @brief Entry point for X/EGL-based applications
 @param className Class name

src/SceneGraph/AbstractTranslation.h

@@ -51,7 +51,7 @@ template<UnsignedInt dimensions, class T, class TranslationType>
 #endif
 class AbstractTranslation: public AbstractTransformation<dimensions, T> {
     public:
-        explicit AbstractTranslation() = default;
+        explicit AbstractTranslation();
 
         /**
          * @brief Translate object
@@ -68,7 +68,7 @@ class AbstractTranslation: public AbstractTransformation<dimensions, T> {
         }
 
     protected:
-        ~AbstractTranslation() = default;
+        ~AbstractTranslation();
 
     #ifdef DOXYGEN_GENERATING_OUTPUT
     protected:
@@ -79,6 +79,10 @@ class AbstractTranslation: public AbstractTransformation<dimensions, T> {
         virtual void doTranslate(const typename DimensionTraits<dimensions, TranslationType>::VectorType& vector, TransformationType type) = 0;
 };
 
+template<UnsignedInt dimensions, class T, class TranslationType> AbstractTranslation<dimensions, T, TranslationType>::AbstractTranslation() = default;
+
+template<UnsignedInt dimensions, class T, class TranslationType> AbstractTranslation<dimensions, T, TranslationType>::~AbstractTranslation() = default;
+
 #ifndef CORRADE_GCC46_COMPATIBILITY
 /**
 @brief Base transformation for two-dimensional scenes supporting translation