[PATCH] PowerPC: Set/restore rounding mode only when needed

[Joseph S. Myers]

This breaks the build for powerpc-nofpu by introducing __fegetround
calls into ldbl-128ibm code when nothing defines __fegetround for
powerpc-nofpu.  This patch updates the nofpu fenv_libc.h headers to
fix this (restoring the status quo of calls to fegetround rather than
introducing any sort of optimized version in the header).

2013-11-25  Joseph Myers  <joseph@codesourcery.com>

	* sysdeps/powerpc/nofpu/fenv_libc.h (__fegetround): New macro.
	* sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h (__fegetround):
	Likewise.

diff --git a/sysdeps/powerpc/nofpu/fenv_libc.h b/sysdeps/powerpc/nofpu/fenv_libc.h
index 14a2d04..a0b6b91 100644
--- a/sysdeps/powerpc/nofpu/fenv_libc.h
+++ b/sysdeps/powerpc/nofpu/fenv_libc.h
@@ -25,4 +25,7 @@
 
 #include <fenv.h>
 
+/* ldbl-128ibm code uses __fegetround.  */
+#define __fegetround()	fegetround ()
+
 #endif /* fenv_libc.h */
diff --git a/sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h b/sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h
index 9637580..e905eda 100644
--- a/sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h
+++ b/sysdeps/powerpc/powerpc32/e500/nofpu/fenv_libc.h
@@ -21,6 +21,9 @@
 
 #include <fenv.h>
 
+/* ldbl-128ibm code uses __fegetround.  */
+#define __fegetround()	fegetround ()
+
 int __feraiseexcept_spe (int);
 libm_hidden_proto (__feraiseexcept_spe)
 

-- 
Joseph S. Myers
joseph@codesourcery.com