From b2e1c562728699642e98c528bed175929cceff4d Mon Sep 17 00:00:00 2001
From: Roland McGrath <roland@hack.frob.com>
Date: Fri, 17 Aug 2012 09:35:36 -0700
Subject: Make libio compile without _IO_MTSAFE_IO.

---
 libio/genops.c |  4 ++++
 libio/libioP.h | 14 ++++++++++++++
 2 files changed, 18 insertions(+)

(limited to 'libio')

diff --git a/libio/genops.c b/libio/genops.c
index c8297ff128..0a81a5d101 100644
--- a/libio/genops.c
+++ b/libio/genops.c
@@ -952,6 +952,7 @@ _IO_unbuffer_write (void)
 	  /* Iff stream is un-orientated, it wasn't used. */
 	  && fp->_mode != 0)
 	{
+#ifdef _IO_MTSAFE_IO
 	  int cnt;
 #define MAXTRIES 2
 	  for (cnt = 0; cnt < MAXTRIES; ++cnt)
@@ -961,6 +962,7 @@ _IO_unbuffer_write (void)
 	      /* Give the other thread time to finish up its use of the
 		 stream.  */
 	      __sched_yield ();
+#endif
 
 	  if (! dealloc_buffers && !(fp->_flags & _IO_USER_BUF))
 	    {
@@ -974,8 +976,10 @@ _IO_unbuffer_write (void)
 
 	  _IO_SETBUF (fp, NULL, 0);
 
+#ifdef _IO_MTSAFE_IO
 	  if (cnt < MAXTRIES && fp->_lock != NULL)
 	    _IO_lock_unlock (*fp->_lock);
+#endif
 	}
 
       /* Make sure that never again the wide char functions can be
diff --git a/libio/libioP.h b/libio/libioP.h
index 486c670b51..aa2b3bfa90 100644
--- a/libio/libioP.h
+++ b/libio/libioP.h
@@ -933,3 +933,17 @@ _IO_acquire_lock_clear_flags2_fct (_IO_FILE **p)
   if ((fp->_flags & _IO_USER_LOCK) == 0)
     _IO_funlockfile (fp);
 }
+
+#if !defined _IO_MTSAFE_IO && !defined NOT_IN_libc
+# define _IO_acquire_lock(_fp)						      \
+  do {									      \
+    _IO_FILE *_IO_acquire_lock_file = NULL
+# define _IO_acquire_lock_clear_flags2(_fp)				      \
+  do {									      \
+    _IO_FILE *_IO_acquire_lock_file = (_fp)
+# define _IO_release_lock(_fp)						      \
+    if (_IO_acquire_lock_file != NULL)					      \
+      _IO_acquire_lock_file->_flags2 &= ~(_IO_FLAGS2_FORTIFY		      \
+                                          | _IO_FLAGS2_SCANF_STD);	      \
+  } while (0)
+#endif
-- 
cgit 1.4.1