Add a __has_extension check for '#pragma clang attribute' as an external-declaration
This was added in r356075.
llvm-svn: 356600
diff --git a/clang/include/clang/Basic/Features.def b/clang/include/clang/Basic/Features.def
index b171365..c97cbc5 100644
--- a/clang/include/clang/Basic/Features.def
+++ b/clang/include/clang/Basic/Features.def
@@ -247,6 +247,7 @@
// Miscellaneous language extensions
EXTENSION(overloadable_unmarked, true)
EXTENSION(pragma_clang_attribute_namespaces, true)
+EXTENSION(pragma_clang_attribute_external_declaration, true)
#undef EXTENSION
#undef FEATURE
diff --git a/clang/test/Parser/pragma-attribute-context.cpp b/clang/test/Parser/pragma-attribute-context.cpp
index 3ec5a67..d893f18 100644
--- a/clang/test/Parser/pragma-attribute-context.cpp
+++ b/clang/test/Parser/pragma-attribute-context.cpp
@@ -1,6 +1,10 @@
// RUN: %clang_cc1 -triple x86_64-apple-darwin9.0.0 -verify -std=c++11 %s
// RUN: %clang_cc1 -triple x86_64-apple-darwin9.0.0 -xobjective-c++ -verify -std=c++11 %s
+#if !__has_extension(pragma_clang_attribute_external_declaration)
+#error
+#endif
+
#define BEGIN_PRAGMA _Pragma("clang attribute push (__attribute__((availability(macos, introduced=1000))), apply_to=function)")
#define END_PRAGMA _Pragma("clang attribute pop")