Make the logfile unbuffered by default on Windows CE.

git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2886 8092fc87-c524-0410-9efc-e669fe64eaf9

sc2/src/port.h

@@ -498,5 +498,19 @@ typedef unsigned int wint_t;
 #	define _NORETURN
 #endif
 
+// Buffered vs. unbuffered logfile
+// stderr is normally unbuffered when connected to a terminal, but it
+// will be buffered when connected to a file, when a --logfile argument
+// is passed to uqm.
+// Buffered output is slower, which can be significant if much debug output
+// is requested, but after a crash occurs the logfile will still be up to
+// date.
+// On platforms where there is no console, having up-to-date log files
+// after a crash is valuable enough to make the logfile unbuffered by
+// default there.
+#if defined(_WIN32_WCE)
+#	define UNBUFFERED_LOGFILE
+#endif
+
 #endif  /* _PORT_H */
 

sc2/src/starcon2.c

@@ -154,6 +154,9 @@ main (int argc, char *argv[])
 	{
 		int i;
 		freopen (options.logFile, "w", stderr);
+#ifdef UNBUFFERED_LOGFILE
+		setbuf (stderr, NULL);
+#endif
 		for (i = 0; i < argc; ++i)
 			log_add (log_User, "argv[%d] = [%s]", i, argv[i]);
 	}