diff -ru MP3Diags-unstable-1.3.04.orig/src/Helpers.cpp MP3Diags-unstable-1.3.04/src/Helpers.cpp
--- MP3Diags-unstable-1.3.04.orig/src/Helpers.cpp	2015-05-17 14:13:49.000000000 -0400
+++ MP3Diags-unstable-1.3.04/src/Helpers.cpp	2016-08-13 11:20:47.000000000 -0400
@@ -26,6 +26,14 @@
 #include  <iomanip>
 #include  <cstdio>
 
+#ifdef __MACH__
+    #include <assert.h>
+    #include <CoreServices/CoreServices.h>
+    #include <mach/mach.h>
+    #include <mach/mach_time.h>
+    #include <unistd.h>
+#endif
+
 #include  <boost/version.hpp>
 
 #include  <QDesktopServices>
@@ -1766,6 +1774,13 @@
     LARGE_INTEGER li;
     QueryPerformanceCounter(&li);
     return li.QuadPart*m_nDurMul;
+#elif defined (__MACH__)
+    static mach_timebase_info_data_t tb;
+    if ( tb.denom == 0 ) {
+        (void) mach_timebase_info(&tb);
+    }
+    
+    return mach_absolute_time() * tb.numer / tb.denom;
 #else
     timespec ts;
     //clock_gettime(CLOCK_PROCESS_CPUTIME_ID, &ts); // CLOCK_MONOTONIC