Index: flex/src/main.c
===================================================================
--- flex/src/main.c	(revision 24)
+++ flex/src/main.c	(working copy)
@@ -112,7 +112,7 @@
 struct yytbl_writer tableswr;
 
 int     prev_stdout = 0;
-char   *flex_temp_out_main="~flex_temp_out_main";
+char   *flex_temp_out_main = 0;
 
 /* Make sure program_name is initialized so we don't crash if writing
  * out an error message before getting the program name from argv[0].
@@ -767,6 +767,8 @@
 			 tblsiz);
 	}
 
+	free (flex_temp_out_main);
+	flex_temp_out_main = 0;
 	exit (exit_status);
 }
 
@@ -779,8 +781,10 @@
 {
 	int     i, sawcmpflag, rv, optind;
 	char   *arg;
+	char    flex_temp_out_main_template[] = "~flex_temp_out_main_XXXXXX";
 	scanopt_t sopt;
 
+	flex_temp_out_main = _strdup(_mktemp(flex_temp_out_main_template));
 	printstats = syntaxerror = trace = spprdflt = false;
 	lex_compat = posix_compat = C_plus_plus = backing_up_report =
 		ddebug = fulltbl = false;
Index: flex/src/filter.c
===================================================================
--- flex/src/filter.c	(revision 24)
+++ flex/src/filter.c	(working copy)
@@ -86,7 +86,8 @@
 
 	/* Get some more or less random data.  */
 	{
-		static unsigned long long g_value = 827363;
+		static unsigned long long g_value;
+		g_value = _getpid();
 		g_value += 100;
 		random_time_bits = (((unsigned long long)234546 << 32)
 			| (unsigned long long)g_value);