1 files changed, 9 insertions, 0 deletions
diff --git a/newlib/libc/stdio/findfp.c b/newlib/libc/stdio/findfp.c
index 64abb1c6b..c6790c491 100644
--- a/newlib/libc/stdio/findfp.c
+++ b/newlib/libc/stdio/findfp.c
@@ -152,7 +152,16 @@ __sinit (s)
   s->__sdidinit = 1;
 
   std (s->__sf + 0, __SRD, 0, s);
+
+  /* on platforms that have true file system I/O, we can verify whether stdout 
+     is an interactive terminal or not.  For all other platforms, we will
+     default to line buffered mode here.  */
+#ifdef HAVE_FCNTL
+  std (s->__sf + 1, __SWR, 1, s);
+#else
   std (s->__sf + 1, __SWR | __SLBF, 1, s);
+#endif
+
   std (s->__sf + 2, __SWR | __SNBF, 2, s);
 
   s->__sglue._next = NULL;