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diff --git a/sysdeps/sh/sh4/fpu/fpu_control.h b/sysdeps/sh/sh4/fpu/fpu_control.h
index d1be46d..3ea37d3 100644
--- a/sysdeps/sh/sh4/fpu/fpu_control.h
+++ b/sysdeps/sh/sh4/fpu/fpu_control.h
@@ -1,5 +1,5 @@
/* FPU control word definitions. SH version.
- Copyright (C) 1999, 2000, 2009 Free Software Foundation, Inc.
+ Copyright (C) 1999, 2000, 2009, 2010 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -46,7 +46,14 @@ typedef unsigned int fpu_control_t;
#if defined __GNUC__
/* GCC provides this function. */
+/* Allow the use in C++ code. */
+#ifdef __cplusplus
+extern "C" {
+#endif
extern void __set_fpscr (unsigned long);
+#ifdef __cplusplus
+}
+#endif /* C++ */
#define _FPU_SETCW(cw) __set_fpscr ((cw))
#else
#define _FPU_SETCW(cw) __asm__ ("lds %0,fpscr" : : "r" (cw))
--
1.7.1
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