X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=2a8832d573f91a0a6a3721117e3f1e7b87d03672;hp=43a73b2870ddce46e12bf32ab9b2f5dfcc5db4cf;hb=7196f4c2370d0c7acd8ec3ed8de7ecb7f0682123;hpb=59f7ecdea273442f1c06569f05632cac0000f93f

diff --git a/src/misc.cpp b/src/misc.cpp
index 43a73b28..2a8832d5 100644
--- a/src/misc.cpp
+++ b/src/misc.cpp
@@ -102,6 +102,13 @@ public:
     if (!fname.empty() && !l.file.is_open())
     {
         l.file.open(fname, ifstream::out);
+
+        if (!l.file.is_open())
+        {
+            cerr << "Unable to open debug log file " << fname << endl;
+            exit(EXIT_FAILURE);
+        }
+
         cin.rdbuf(&l.in);
         cout.rdbuf(&l.out);
     }
@@ -169,7 +176,7 @@ void dbg_print() {
 
 std::ostream& operator<<(std::ostream& os, SyncCout sc) {
 
-  static Mutex m;
+  static std::mutex m;
 
   if (sc == IO_LOCK)
       m.lock();