small fix for building in VC2003

juce_amalgamated.cpp

@@ -214012,9 +214012,11 @@ namespace pnglibNamespace
 
 #if JUCE_INCLUDE_PNGLIB_CODE
 
-  using ::calloc;
+ #if _MSC_VER != 1310
+  using ::calloc; // (causes conflict in VS.NET 2003)
   using ::malloc;
   using ::free;
+ #endif
 
   extern "C"
   {

src/juce_appframework/gui/graphics/imaging/image_file_formats/juce_PNGLoader.cpp

@@ -54,9 +54,11 @@ namespace pnglibNamespace
 
 #if JUCE_INCLUDE_PNGLIB_CODE
 
-  using ::calloc;
+ #if _MSC_VER != 1310
+  using ::calloc; // (causes conflict in VS.NET 2003)
   using ::malloc;
   using ::free;
+ #endif
 
   extern "C"
   {