[patches] DFP branch: Make convert.h machine-independent - take 2

["Andreas Krebbel" <krebbel@xxxxxxxxxxxxxxxxxx>]

Hello,

this changes to convert.h to use standard functions if compiled on a
non-power target.  The previous version always used the standard
functions.  But this unfortunately imposes a libm dependency in case
the functions aren't duplicated in libdfp.  For power there are
already inline functions defined in a header file which can be used.
Other targets not having these functions probably want to simply
duplicate the libm functions in libdfp.

Please apply if you think it's ok.

Bye,

-Andreas-


2008-08-21  Andreas Krebbel  <krebbel1@xxxxxxxxxx>

	* dfp/sysdeps/soft-dfp/convert.h (DFP_TEST_EXCEPTIONS,
	DFP_CLEAR_EXCEPTIONS): Use the standard functions for
	non-power targets.


Index: dfp/sysdeps/soft-dfp/convert.h
===================================================================
--- dfp/sysdeps/soft-dfp/convert.h.orig	2008-08-20 18:48:31.000000000 +0200
+++ dfp/sysdeps/soft-dfp/convert.h	2008-08-20 18:49:12.000000000 +0200
@@ -279,6 +279,10 @@ extern const _Decimal128 decpowof2[];
       (((status) & DEC_IEEE_854_Underflow) ? FE_UNDERFLOW : 0))
 
 #include <fenv_libc.h>
+#define DFP_HANDLE_EXCEPTIONS(status)	feraiseexcept(status)
+
+#ifdef __powerpc__
+
 #define DFP_TEST_EXCEPTIONS(status)	({	\
 	fenv_union_t u; 			\
 	u.fenv = fegetenv_register(); 		\
@@ -290,5 +294,11 @@ extern const _Decimal128 decpowof2[];
 	u.l[1] &= ~status;			\
 	fesetenv_register(u.fenv);		\
 	}
-#define DFP_HANDLE_EXCEPTIONS(status)	feraiseexcept(status)
+#else /* Non-power targets might want to use the standard functions.
+	 Note that it is necessary to include these symbols in libdfp
+	 to avoid libm dependencies.  */
+
+#define DFP_TEST_EXCEPTIONS(status)	fetestexcept (status)
+#define DFP_CLEAR_EXCEPTIONS(status)	feclearexcept (status)
 
+#endif