X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=backend.c;h=f6e75c49f0e69aa380491ecdccc2ddb9739b3116;hb=2b59fb6b9575ad038bae89a48063084c8b3243a9;hp=43379fc3f010c25bf6a8fb299e7ddbbd1f2b7cce;hpb=001ee7d9a6e1df467d48fd30cda74ded4e939d7c;p=xboard.git

diff --git a/backend.c b/backend.c
index 43379fc..f6e75c4 100644
--- a/backend.c
+++ b/backend.c
@@ -57,6 +57,9 @@
 
 #define DoSleep( n ) if( (n) != 0 ) Sleep( (n) );
 
+int flock(int f, int code);
+#define LOCK_EX 2
+
 #else
 
 #define DoSleep( n ) if( (n) >= 0) sleep(n)
@@ -841,6 +844,7 @@ ReplaceEngine(ChessProgramState *cps, int n)
     appData.noChessProgram = False;
     appData.clockMode = True;
     InitEngine(cps, n);
+    if(n) return; // only startup first engine immediately; second can wait
     savCps = cps; // parameter to LoadEngine passed as globals, to allow scheduled calling :-(
     LoadEngine();
 }