Added a CMake option that allows to show debug messages in release mode

CMakeLists.txt

@@ -90,6 +90,11 @@ if(WITH_MP4)
   set(TAGLIB_WITH_MP4 TRUE)
 endif()
 
+option(TRACE_IN_RELEASE "Output debug messages even in release mode"  OFF)
+if(TRACE_IN_RELEASE)
+  set(TAGLIB_TRACE_IN_RELEASE TRUE)
+endif()
+
 configure_file(taglib/taglib_config.h.cmake ${CMAKE_CURRENT_BINARY_DIR}/taglib_config.h)
 
 add_subdirectory(taglib) 

taglib/taglib_config.h.cmake

@@ -3,3 +3,4 @@
 #define   TAGLIB_WITH_ASF 1
 #define   TAGLIB_WITH_MP4 1
 
+#cmakedefine   TAGLIB_TRACE_IN_RELEASE 1

taglib/toolkit/tdebug.cpp

@@ -24,6 +24,7 @@
  ***************************************************************************/
 
 #include "config.h"
+#include "taglib_config.h"
 
 #include "tdebug.h"
 #include "tstring.h"
@@ -67,11 +68,17 @@ namespace
 
 void TagLib::debug(const String &s)
 {
+#if !defined(NDEBUG) || defined(TAGLIB_TRACE_IN_RELEASE)
+  
   getDebugListener()->printMessage("TagLib: " + s + "\n");
+
+#endif
 }
 
 void TagLib::debugData(const ByteVector &v)
 {
+#if !defined(NDEBUG) || defined(TAGLIB_TRACE_IN_RELEASE)
+
   for(size_t i = 0; i < v.size(); ++i) 
   {
     String msg 
@@ -85,4 +92,6 @@ void TagLib::debugData(const ByteVector &v)
 
     getDebugListener()->printMessage(msg);
   }
+
+#endif
 }

taglib/toolkit/tdebuglistener.cpp

@@ -25,12 +25,11 @@
 
 #include "tdebuglistener.h"
 
-#ifndef NDEBUG
-# include <iostream>
-# include <bitset>
-# ifdef _WIN32
-#   include <windows.h>
-# endif
+#include <iostream>
+#include <bitset>
+
+#ifdef _WIN32
+# include <windows.h>
 #endif
 
 using namespace TagLib;
@@ -42,8 +41,7 @@ namespace
   public:
     virtual void printMessage(const String &msg)
     {
-#ifndef NDEBUG
-# ifdef _WIN32
+#ifdef _WIN32
 
       const wstring wstr = msg.toWString();
       const int len = WideCharToMultiByte(CP_ACP, 0, wstr.c_str(), -1, NULL, 0, NULL, NULL);
@@ -54,13 +52,11 @@ namespace
         std::cerr << std::string(&buf[0]);
       }
 
-
-# else
+#else
 
       std::cerr << msg;
 
-# endif 
-#endif
+#endif 
     }
   };