(main): Flush stdout before switching to unbuffered mode

and calling tail_forever.  Required only on Solaris2.7 -- on other
systems, using setvbuf to switch to unbufferd mode does the flush.

1 files changed, 4 insertions, 0 deletions

diff --git a/src/tail.c b/src/tail.c
index 7a2c32506..a2a8979b1 100644
--- a/src/tail.c
+++ b/src/tail.c
@@ -1526,6 +1526,10 @@ main (int argc, char **argv)
 
   if (forever)
     {
+      /* This fflush appears to be required only on Solaris2.7.  */
+      if (fflush (stdout) < 0)
+	error (EXIT_FAILURE, errno, _("write error"));
+
       SETVBUF (stdout, NULL, _IONBF, 0);
       tail_forever (F, n_files);
     }