MKV: MKV_DEBUG is a define to set, not a particular value

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

modules/demux/mkv/virtual_segment.cpp

@@ -207,7 +207,7 @@ virtual_edition_c::virtual_edition_c( chapter_edition_c * p_edit, std::vector<ma
             b_ordered = true;
     }
 
-#if MKV_DEBUG
+#ifdef MKV_DEBUG
     msg_Dbg( &p_main_segment->sys.demuxer, "-- RECAP-BEGIN --" );
     print();
     msg_Dbg( &p_main_segment->sys.demuxer, "-- RECAP-END --" );
@@ -610,7 +610,7 @@ bool virtual_chapter_c::Leave( bool b_do_subs )
     return false;
 }
 
-#if MKV_DEBUG
+#ifdef MKV_DEBUG
 void virtual_chapter_c::print()
 {
     msg_Dbg( &p_segment->sys.demuxer, "*** chapter %"PRId64" - %"PRId64" (%u)",

modules/demux/mkv/virtual_segment.hpp

@@ -72,7 +72,7 @@ public:
     int64_t             i_virtual_stop_time;
     int                 i_seekpoint_num;
     std::vector<virtual_chapter_c *> sub_chapters;
-#if MKV_DEBUG
+#ifdef MKV_DEBUG
     void print();
 #endif
 };
@@ -101,7 +101,7 @@ public:
 private:
     void retimeChapters();
     void retimeSubChapters( virtual_chapter_c * p_vchap );
-#if MKV_DEBUG
+#ifdef MKV_DEBUG
     void print(){ for( size_t i = 0; i<chapters.size(); i++ ) chapters[i]->print(); }
 #endif