[2.25 COMMITTED] nptl/tst-thread-exit-clobber: Run with any C++ compiler

[Florian Weimer]

We do not need thread_local support in the C++11 comiler, and the
minimum GCC version for glibc has C++11 support (if it has C++ support).

(cherry picked from commit 10d200dbace0ea5198006b313f40c3b884c88724)

2018-01-16  Florian Weimer  <fweimer@redhat.com>

	* nptl/Makefile [$(have-cxx-thread_local)] (tests-unsupported):
	Move tst-thread-exit-clobber ...
	[$(CXX)] (tests-unsupported): ... to here.

diff --git a/nptl/Makefile b/nptl/Makefile
index 5f7ba532e0..c263c131e7 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -449,11 +449,11 @@ endif
 ifeq (,$(CXX))
 # These tests require a C++ compiler and runtime.
 tests-unsupported += tst-cancel24 tst-cancel24-static tst-once5 \
-  tst-minstack-throw
+  tst-thread-exit-clobber tst-minstack-throw
 endif
 # These tests require a C++ compiler and runtime with thread_local support.
 ifneq ($(have-cxx-thread_local),yes)
-tests-unsupported += tst-thread_local1 tst-thread-exit-clobber
+tests-unsupported += tst-thread_local1
 endif
 
 include ../Rules