X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fmisc.cpp;h=6f908fd2730bb61cc3645449886616ac0e9a5e54;hp=b1539ce20ea5d8e9d5d606154932c7f4df89c900;hb=3804effb341b3008326a1613923177eb83d02826;hpb=4c986b050111e4fb96716a75ae2168c005b03df9

diff --git a/src/misc.cpp b/src/misc.cpp
index b1539ce2..6f908fd2 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);
     }
@@ -168,7 +175,7 @@ void dbg_print() {
 
 std::ostream& operator<<(std::ostream& os, SyncCout sc) {
 
-  static Mutex m;
+  static std::mutex m;
 
   if (sc == IO_LOCK)
       m.lock();