Define x86_64_fallback_frame_state only for glibc

2012-03-29  H.J. Lu  <hongjiu.lu@intel.com>

	* config/i386/linux-unwind.h (x86_64_fallback_frame_state): Define
	only for glibc.

From-SVN: r185957

libgcc/ChangeLog

+2012-03-29  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* config/i386/linux-unwind.h (x86_64_fallback_frame_state): Define
+	only for glibc.
+
 2012-03-28  Georg-Johann Lay  <avr@gjlay.de>
 
 	PR target/52737

libgcc/config/i386/linux-unwind.h

@@ -29,11 +29,17 @@ see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
 
 #ifndef inhibit_libc
 
-#ifdef __x86_64__
+/* There's no sys/ucontext.h for glibc 2.0, so no
+   signal-turned-exceptions for them.  There's also no configure-run for
+   the target, so we can't check on (e.g.) HAVE_SYS_UCONTEXT_H.  Using the
+   target libc version macro should be enough.  */
+#if defined __GLIBC__ && !(__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
 
 #include <signal.h>
 #include <sys/ucontext.h>
 
+#ifdef __x86_64__
+
 #define MD_FALLBACK_FRAME_STATE_FOR x86_64_fallback_frame_state
 
 static _Unwind_Reason_Code
@@ -108,15 +114,6 @@ x86_64_fallback_frame_state (struct _Unwind_Context *context,
 
 #else /* ifdef __x86_64__  */
 
-/* There's no sys/ucontext.h for glibc 2.0, so no
-   signal-turned-exceptions for them.  There's also no configure-run for
-   the target, so we can't check on (e.g.) HAVE_SYS_UCONTEXT_H.  Using the
-   target libc version macro should be enough.  */
-#if defined __GLIBC__ && !(__GLIBC__ == 2 && __GLIBC_MINOR__ == 0)
-
-#include <signal.h>
-#include <sys/ucontext.h>
-
 #define MD_FALLBACK_FRAME_STATE_FOR x86_fallback_frame_state
 
 static _Unwind_Reason_Code
@@ -197,6 +194,6 @@ x86_frob_update_context (struct _Unwind_Context *context,
     _Unwind_SetSignalFrame (context, 1);
 }
 
-#endif /* not glibc 2.0 */
 #endif /* ifdef __x86_64__  */
+#endif /* not glibc 2.0 */
 #endif /* ifdef inhibit_libc  */