[libc++] Mark std::tuple CTAD test as failing on AppleClang 9
Like CTAD for std::unordered_set, AppleClang 9's support for CTAD is
insufficient. I suspect the corresponding LLVM Clang is broken too,
but we don't seem to have testers using that Clang.
git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@368911 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/deduct.pass.cpp b/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/deduct.pass.cpp
index e903cd0..ddb61a0 100644
--- a/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/deduct.pass.cpp
+++ b/test/std/utilities/tuple/tuple.tuple/tuple.cnstr/deduct.pass.cpp
@@ -8,6 +8,7 @@
// UNSUPPORTED: c++98, c++03, c++11, c++14
// UNSUPPORTED: libcpp-no-deduction-guides
+// UNSUPPORTED: apple-clang-9
// GCC's implementation of class template deduction is still immature and runs
// into issues with libc++. However GCC accepts this code when compiling
