From 7080b364170f3b0c10518f3c4ad3585c6845c16e Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Thu, 21 Feb 2013 12:27:11 +0000
Subject: [PATCH] 	* libc/include/sys/_types.h (_ssize_t): Define as
 signed equivalent of 	size_t with GCC.

---
 newlib/ChangeLog                 | 6 ++++++
 newlib/libc/include/sys/_types.h | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/newlib/ChangeLog b/newlib/ChangeLog
index 7b63386f89..89c462d401 100644
--- a/newlib/ChangeLog
+++ b/newlib/ChangeLog
@@ -1,3 +1,9 @@
+2013-02-20  Yaakov Selkowitz  <yselkowitz@users.sourceforge.net>
+	    Joseph S. Myers <joseph@codesourcery.com>
+
+	* libc/include/sys/_types.h (_ssize_t): Define as signed equivalent of
+	size_t with GCC.
+
 2013-02-19  Steve Ellcey  <sellcey@mips.com>
 
 	* libc/machine/mips/memcpy.S: Fix USE_PREFETCH check.
diff --git a/newlib/libc/include/sys/_types.h b/newlib/libc/include/sys/_types.h
index 25252ed836..e8ac429e74 100644
--- a/newlib/libc/include/sys/_types.h
+++ b/newlib/libc/include/sys/_types.h
@@ -52,12 +52,21 @@ typedef _off64_t _fpos64_t;
 #endif
 
 #ifndef __ssize_t_defined
+#ifdef __SIZE_TYPE__
+/* If __SIZE_TYPE__ is defined (gcc) we define ssize_t based on size_t.
+   We simply change "unsigned" to "signed" for this single definition
+   to make sure ssize_t and size_t only differ by their signedness. */
+#define unsigned signed
+typedef __SIZE_TYPE__ _ssize_t;
+#undef unsigned
+#else
 #if defined(__INT_MAX__) && __INT_MAX__ == 2147483647
 typedef int _ssize_t;
 #else
 typedef long _ssize_t;
 #endif
 #endif
+#endif
 
 #define __need_wint_t
 #include <stddef.h>