--- 2nash.c.orig	2022-03-10 02:42:46.000000000 -0700
+++ 2nash.c	2022-03-31 08:11:01.829106492 -0600
@@ -9,6 +9,7 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <signal.h>
+#include <fcntl.h>
 
        int main(int argc, char *argv[])
 	       {
@@ -28,14 +29,16 @@
 		      if(cpid[l-1] == 0) {
 			 //forked threads
 			// n= sprintf(buffer, "lrs %s > out%i", argv[l], l);
+			 sprintf(buffer, "out%i", l);
+			 int fd = creat(buffer, S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH);
+			 dup2(fd, 1);
                          if(l==1) {
-                              int n= sprintf(buffer, "lrsnash %s %s > out%i", argv[1], argv[2], l);
+                              execlp("lrsnash", "lrsnash", argv[1], argv[2], NULL);
                          }
                          else     {
-                              int n= sprintf(buffer, "lrsnash %s %s > out%i", argv[2], argv[1], l);
+                              execlp("lrsnash", "lrsnash", argv[2], argv[1], NULL);
                          }
 
-			 int i=system(buffer);
                           _exit(0);
 		      }
 		  }
@@ -50,18 +53,18 @@
 			      printf("lrsnash %s %s   finished first\n", argv[2], argv[1]);
 			      printf("player numbers will be reversed in output\n");
                                }
+			   sprintf(buffer, "out%i", j);
                            if(argc == 4) {
 			       printf("output file: %s\n", argv[3]);
-			       int n = sprintf(buffer, "/bin/mv -f out%i %s", j, argv[3]);
+			       rename(buffer, argv[3]);
                            }
                            else  {
 			        printf("output file: out\n");
-			        int n = sprintf(buffer, "/bin/mv -f out%i out", j);
+				rename(buffer, "out");
                            }
-			  int i = system(buffer);
 		      } else {
-			  int n = sprintf(buffer, "/bin/rm -f out%i", j);
-			  int i = system(buffer);
+			  sprintf(buffer, "out%i", j);
+			  unlink(buffer);
 		      }
 		  }
 		  printf("the other process will be ");   /*...will be killed */
--- lrslib.c.orig	2022-03-10 02:42:46.000000000 -0700
+++ lrslib.c	2022-03-31 08:11:06.044105122 -0600
@@ -81,10 +81,10 @@ char *basename(char *path);
 /* signals handling            */
 /*******************************/
 #ifndef SIGNALS
-static void checkpoint ();
-static void die_gracefully ();
+static void checkpoint (int signum);
+static void die_gracefully (int signum);
 static void setup_signals (void);
-static void timecheck ();
+static void timecheck (int signum);
 #endif
 
 /*******************************/
@@ -5673,7 +5673,7 @@ setup_signals ()
 }
 
 static void
-timecheck ()
+timecheck (int signum __attribute__((unused)))
 {
   lrs_dump_state ();
   errcheck ("signal", signal (SIGALRM, timecheck));
@@ -5681,14 +5681,14 @@ timecheck ()
 }
 
 static void
-checkpoint ()
+checkpoint (int signum __attribute__((unused)))
 {
   lrs_dump_state ();
   errcheck ("signal", signal (SIGUSR1, checkpoint));
 }
 
 static void
-die_gracefully ()
+die_gracefully (int signum __attribute__((unused)))
 {
   lrs_dump_state ();