--- src/import/ImportFLAC.cpp	2013-10-19 09:31:52.000000000 +0200
+++ src/import/ImportFLAC.cpp-new	2016-08-31 18:58:59.565316753 +0200
@@ -296,7 +296,7 @@
    int cnt;
    wxFile binaryFile;
    if (!binaryFile.Open(filename)) {
-      return false; // File not found
+      return NULL; // File not found
    }
 
 #ifdef USE_LIBID3TAG
@@ -313,7 +313,7 @@
 
    if (cnt == wxInvalidOffset || strncmp(buf, FLAC_HEADER, 4) != 0) {
       // File is not a FLAC file
-      return false; 
+      return NULL; 
    }
    
    // Open the file for import