diff --git a/console/tidy.c b/console/tidy.c
index 91ba055..563cb0a 100644
--- a/console/tidy.c
+++ b/console/tidy.c
@@ -22,15 +22,12 @@
 #include "tidy.h"
 #include "tidybuffio.h"
 #include "locale.h"
+#include "sprtf.h"
 
 #if defined(_WIN32)
 #  include <windows.h>    /* Force console to UTF8. */
 #endif
 
-#ifdef ENABLE_DEBUG_LOG
-#  include "sprtf.h"
-#endif
-
 #if defined(ENABLE_DEBUG_LOG) && defined(_MSC_VER) && defined(_CRTDBG_MAP_ALLOC)
 #  include <stdlib.h>
 #  include <crtdbg.h>
@@ -2016,7 +2013,6 @@ int main( int argc, char** argv )
 #  if defined(_CRTDBG_MAP_ALLOC)
     _CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF | _CRTDBG_LEAK_CHECK_DF);
 #  endif
-    set_log_file((char *)"temptidy.txt", 0);
 #endif
 
     tdoc = tidyCreate();
diff --git a/include/tidyplatform.h b/include/tidyplatform.h
index 3aa9b57..32c3c05 100644
--- a/include/tidyplatform.h
+++ b/include/tidyplatform.h
@@ -483,6 +483,9 @@ extern "C" {
 
 # if defined(_MSC_VER)
 #    define fileno _fileno
+#if !defined(NDEBUG) && !defined(ENABLE_DEBUG_LOG) && !defined(DISABLE_DEBUG_LOG)
+#define ENABLE_DEBUG_LOG
+#endif
 #endif
 
 #  define access _access
@@ -651,38 +654,8 @@ opaque_type( TidyIterator );
 } /* extern "C" */
 #endif
 
-
-/*=============================================================================
- * Debugging
- *  When building and defining the ENABLE_DEBUG_LOG macro, Tidy will output
- *  extensive debug information. In addition to this macro, you can supply
- *  build flags for additional diagnostic information:
- *    - _CRTDBG_MAP_ALLOC (_MSC_VER only)
- *    - DEBUG_ALLOCATION
- *    - DEBUG_MEMORY
- *
- *  You can use DEBUG_LOG( SPRTF() ) to avoid #ifdef ENABLE_DEBUG_LOG for
- *  one-liners.
- *===========================================================================*/
-
-#ifdef ENABLE_DEBUG_LOG
-#  include "sprtf.h"
-#endif
-
-#ifndef SPRTF
-#  define SPRTF printf
-#endif
-
-#ifdef ENABLE_DEBUG_LOG
-#  define DEBUG_LOG(ARG) do { ARG; } while(0)
-#else
-#  define DEBUG_LOG(ARG)
-#endif
-
-
 #endif /* __TIDY_PLATFORM_H__ */
 
-
 /*
  * local variables:
  * mode: c
diff --git a/src/alloc.c b/src/alloc.c
index 1666e40..7235a3c 100644
--- a/src/alloc.c
+++ b/src/alloc.c
@@ -9,6 +9,7 @@
 
 #include "tidy.h"
 #include "forward.h"
+#include "sprtf.h"
 
 static TidyMalloc  g_malloc  = NULL;
 static TidyRealloc g_realloc = NULL;
diff --git a/src/fileio.c b/src/fileio.c
index 8a5297f..61048c0 100644
--- a/src/fileio.c
+++ b/src/fileio.c
@@ -13,6 +13,7 @@
 #include "forward.h"
 #include "fileio.h"
 #include "tidy.h"
+#include "sprtf.h"
 
 typedef struct _fp_input_source
 {
diff --git a/src/lexer.c b/src/lexer.c
index 21728e0..05fc509 100644
--- a/src/lexer.c
+++ b/src/lexer.c
@@ -39,6 +39,7 @@
 #include "clean.h"
 #include "utf8.h"
 #include "streamio.h"
+#include "sprtf.h"
 
 #if defined(ENABLE_DEBUG_LOG)
 /* #define DEBUG_ALLOCATION   special EXTRA allocation debug information - VERY NOISY */
diff --git a/src/parser.c b/src/parser.c
index 333996c..8569ed5 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -12,6 +12,7 @@
 #include "clean.h"
 #include "tags.h"
 #include "tmbstr.h"
+#include "sprtf.h"
 
 /*
   Issue #72 - Need to know to avoid error-reporting - no warning only if --show-body-only yes
diff --git a/src/sprtf.c b/src/sprtf.c
index cd6dd8d..d3b936c 100644
--- a/src/sprtf.c
+++ b/src/sprtf.c
@@ -56,11 +56,8 @@ char *GetNxtBuf()
 }
 
 #define  MXIO     512
-#ifdef _MSC_VER /* use local log */
-static char def_log[] = "tempex.txt";
-#else
-static char def_log[] = "ex.log";
-#endif
+
+static char def_log[] = "temptidy.txt"; /* use local log */
 static char logfile[264] = "\0";
 static FILE * outfile = NULL;
 static int addsystime = 0;
diff --git a/src/sprtf.h b/src/sprtf.h
index 322009c..4cfb6bf 100644
--- a/src/sprtf.h
+++ b/src/sprtf.h
@@ -25,6 +25,36 @@
 
 #ifdef   __cplusplus
 extern "C" {
+#endif
+    /*=============================================================================
+    * EXTRA Debugging, and information aid.
+    *
+    *  When building and defining the ENABLE_DEBUG_LOG macro, Tidy will output
+    *  extensive debug information. In addition to this macro, you can supply
+    *  cmake build flags for additional diagnostic information:
+    *    - -DENABLE_ALLOC_DEBUG:BOOL=ON   - DEBUG_ALLOCATION
+    *    - -DENABLE_MEMORY_DEBUG:BOOL=ON  - DEBUG_MEMORY
+    *    - -DENABLE_CRTDBG_MEMORY:BOOL=ON - _CRTDBG_MAP_ALLOC (WIN32 only)
+    *
+    *  _MSC_VER Only - ENABLE_DEBUG_LOG is automatically enabled in the Debug
+    *  build, unless DISABLE_DEBUG_LOG is defined. See 'tidyplatform.h'
+    *
+    *  You can use DEBUG_LOG( SPRTF() ) to avoid #ifdef ENABLE_DEBUG_LOG for
+    *  one-liners.
+    *
+    *  This EXTRA Debug information is also written to a 'temptidy.txt' log
+    *  file, for review, and analysis.
+    *
+    *===========================================================================*/
+
+#ifndef SPRTF
+#  define SPRTF sprtf
+#endif
+
+#ifdef ENABLE_DEBUG_LOG
+#  define DEBUG_LOG(ARG) do { ARG; } while(0)
+#else
+#  define DEBUG_LOG(ARG)
 #endif
 
 #ifdef _MSC_VER
diff --git a/src/tags.c b/src/tags.c
index 67eeaa0..fbcf547 100644
--- a/src/tags.c
+++ b/src/tags.c
@@ -10,6 +10,8 @@
 #include "tidy-int.h"
 #include "message.h"
 #include "tmbstr.h"
+#include "sprtf.h"
+
 /* Attribute checking methods */
 static CheckAttribs CheckIMG;
 static CheckAttribs CheckLINK;
diff --git a/src/tidylib.c b/src/tidylib.c
index dae71c8..62bb7d9 100644
--- a/src/tidylib.c
+++ b/src/tidylib.c
@@ -33,7 +33,7 @@
 #include "utf8.h"
 #include "mappedio.h"
 #include "language.h"
-
+#include "sprtf.h"
 
 /* Create/Destroy a Tidy "document" object */
 static TidyDocImpl* tidyDocCreate( TidyAllocator *allocator );