GCC exception fix

library/DFError.h

@@ -87,8 +87,7 @@ namespace DFHack
                 s << _key;
                 key = s.str();
             }
-            virtual ~MissingMemoryDefinition() throw()
-            {};
+            virtual ~MissingMemoryDefinition() throw(){};
 
             // (perhaps it should be an enum, but this is intended for easy printing/logging)
             // type can be any of the following:
@@ -126,6 +125,8 @@ namespace DFHack
             const int row;
             const int col;
             
+            virtual ~MemoryXmlParse() throw(){};
+
             virtual const char* what() const throw()
             {
                 std::stringstream s;
@@ -141,6 +142,8 @@ namespace DFHack
 
             std::string attr;
             
+            virtual ~MemoryXmlBadAttribute() throw(){};
+
             virtual const char* what() const throw()
             {
                 std::stringstream s;
@@ -154,6 +157,8 @@ namespace DFHack
         public:
             MemoryXmlNoRoot() {}
             
+            virtual ~MemoryXmlNoRoot() throw(){};
+
             virtual const char* what() const throw()
             {
                 return "no pElem found";
@@ -164,6 +169,7 @@ namespace DFHack
         {
         public:
             MemoryXmlNoDFExtractor(const char* _name) : name(_name) {}
+            virtual ~MemoryXmlNoDFExtractor() throw(){};
 
             std::string name;
 
@@ -179,6 +185,7 @@ namespace DFHack
         {
         public:
             MemoryXmlUnderspecifiedEntry() {}
+            virtual ~MemoryXmlUnderspecifiedEntry() throw(){};
 
             virtual const char* what() const throw()
             {
@@ -190,6 +197,7 @@ namespace DFHack
         {
         public:
             MemoryXmlUnknownType(const char* _type) : type(_type) {}
+            virtual ~MemoryXmlUnknownType() throw(){};
 
             std::string type;