--- configure.in.orig	2004-10-01 02:35:56.000000000 +1000
+++ configure.in
@@ -447,6 +447,11 @@ AC_CHECK_FUNCS(waitpid wait4 getcwd strd
     strlcat strlcpy strtol mallinfo getgroups setgroups geteuid getegid \
     open64 mkstemp64)
 
+AC_CHECK_FUNCS(getpgrp)
+if test $ac_cv_func_getpgrp = yes; then
+	AC_FUNC_GETPGRP
+fi
+
 AC_CACHE_CHECK([for working socketpair],rsync_cv_HAVE_SOCKETPAIR,[
 AC_TRY_RUN([
 #include <sys/types.h>
--- config.h.in.orig	2004-08-03 07:54:49.000000000 +1000
+++ config.h.in
@@ -12,6 +12,9 @@
    this is either `int' or `gid_t'. */
 #undef GETGROUPS_T
 
+/* Define if the `getpgrp' function takes no argument. */
+#undef GETPGRP_VOID
+
 /* Define to 1 if you have `alloca', as a function or macro. */
 #undef HAVE_ALLOCA
 
@@ -89,6 +92,9 @@
 /* Define to 1 if you have the `getnameinfo' function. */
 #undef HAVE_GETNAMEINFO
 
+/* Define if you have the getpgrp function. */
+#undef HAVE_GETPGRP
+
 /* */
 #undef HAVE_GETTIMEOFDAY_TZ
 
--- progress.c.orig	2004-02-28 13:00:57.000000000 +1100
+++ progress.c
@@ -115,10 +115,19 @@ void end_progress(OFF_T size)
 void show_progress(OFF_T ofs, OFF_T size)
 {
 	struct timeval now;
+	static pid_t pgrp = -1;
 
 	if (am_server)
 		return;
 
+	if (pgrp == -1) {
+#if GETPGRP_VOID
+		pgrp = getpgrp();
+#else /* ! GETPGRP_VOID */
+		pgrp = getpgrp(0);
+#endif /* ! GETPGRP_VOID */
+	}
+
 	gettimeofday(&now, NULL);
 
 	if (!ph_start.time.tv_sec) {
@@ -150,5 +159,8 @@ void show_progress(OFF_T ofs, OFF_T size
 		ph_list[newest_hpos].ofs = ofs;
 	}
 
+	if (tcgetpgrp(fileno(stdout)) != pgrp)
+		return;
+
 	rprint_progress(ofs, size, &now, False);
 }