[pushed] testsuite,objective-c++: Fix imported NSObjCRuntime.h.

[pushed] testsuite,objective-c++: Fix imported NSObjCRuntime.h.

[Iain Sandoe]

Tested on x86_64-darwin, pushed to trunk, thanks
Iain

--- 8< ---

We have imported some headers from the GNUStep project to allow us
to maintain the testsuite independent to changing versions of system
headers.

One of these headers has a macro that (now we have support for
__has_feature) expands to a declaration that triggers a warning.

These headers are considered part of the implementation so that, in
this case, we can suppress the warning with the system_header pragma.

Signed-off-by: Iain Sandoe <iain@sandoe.co.uk>

gcc/testsuite/ChangeLog:

	* objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h: Make
	this header use pragma system_header.
---
 .../objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h     | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/gcc/testsuite/objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h b/gcc/testsuite/objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h
index 189af80436a..62556f9ac88 100644
--- a/gcc/testsuite/objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h
+++ b/gcc/testsuite/objc-obj-c++-shared/GNUStep/Foundation/NSObjCRuntime.h
@@ -29,6 +29,9 @@
 #ifndef __NSObjCRuntime_h_GNUSTEP_BASE_INCLUDE
 #define __NSObjCRuntime_h_GNUSTEP_BASE_INCLUDE
 
+/* Allow the elaborated enum use in _GS_NAMED_ENUM. */
+#pragma GCC system_header
+
 #ifdef __cplusplus
 #ifndef __STDC_LIMIT_MACROS
 #define __STDC_LIMIT_MACROS 1
-- 
2.39.2 (Apple Git-143)