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Fix warnings from ARM soft-float fpu_control.h


I've applied this patch to make the ARM soft-float fpu_control.h 
definitions of _FPU_GETCW and _FPU_SETCW match those used in other 
soft-float cases, to avoid them generating compiler warnings (in 
particular, when building the test-fpucw.c testcase).

diff --git a/ports/ChangeLog.arm b/ports/ChangeLog.arm
index c7e22cc..a901c6e 100644
--- a/ports/ChangeLog.arm
+++ b/ports/ChangeLog.arm
@@ -1,5 +1,10 @@
 2013-06-18  Joseph Myers  <joseph@codesourcery.com>
 
+	* sysdeps/arm/fpu_control.h [!(_LIBC && !_LIBC_TEST) &&
+	__SOFTFP__] (_FPU_GETCW): Define to (cw) = 0.
+	[!(_LIBC && !_LIBC_TEST) && __SOFTFP__] (_FPU_SETCW): Define to
+	(void) (cw).
+
 	* sysdeps/arm/fpu_control.h [!_LIBC && __SOFTFP__]: Change
 	condition to [!(_LIBC && !_LIBC_TEST) && __SOFTFP__].
 	* sysdeps/arm/test-fpucw.c: New file.
diff --git a/ports/sysdeps/arm/fpu_control.h b/ports/sysdeps/arm/fpu_control.h
index 3ceb58b..513e694 100644
--- a/ports/sysdeps/arm/fpu_control.h
+++ b/ports/sysdeps/arm/fpu_control.h
@@ -24,8 +24,8 @@
 #define _FPU_RESERVED 0xffffffff
 #define _FPU_DEFAULT  0x00000000
 typedef unsigned int fpu_control_t;
-#define _FPU_GETCW(cw) 0
-#define _FPU_SETCW(cw) do { } while (0)
+#define _FPU_GETCW(cw) (cw) = 0
+#define _FPU_SETCW(cw) (void) (cw)
 extern fpu_control_t __fpu_control;
 
 #else

-- 
Joseph S. Myers
joseph@codesourcery.com


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