[2.26 COMMITTED] nptl/tst-minstack-throw: Compile in C++11 mode with GNU extensions

[Florian Weimer]

(cherry picked from commit b725132d2b0aeddf970b1ce3e5a24f8637a7b4c2)

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

	* nptl/Makefile (CFLAGS-tst-minstack-throw.o): Compile in C++11
	mode with GNU extensions.

diff --git a/nptl/Makefile b/nptl/Makefile
index 6516fcd8fb..75e21ea90d 100644
--- a/nptl/Makefile
+++ b/nptl/Makefile
@@ -229,6 +229,7 @@ CFLAGS-tst-thread_local1.o = -std=gnu++11
 LDLIBS-tst-thread_local1 = -lstdc++
 CFLAGS-tst-thread-exit-clobber.o = -std=gnu++11
 LDLIBS-tst-thread-exit-clobber = -lstdc++
+CFLAGS-tst-minstack-throw.o = -std=gnu++11
 LDLIBS-tst-minstack-throw = -lstdc++
 
 tests = tst-attr1 tst-attr2 tst-attr3 tst-default-attr \