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-rw-r--r--lib/gthreads.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/gthreads.h b/lib/gthreads.h
index 8a4e9e444a..72bdb56ae9 100644
--- a/lib/gthreads.h
+++ b/lib/gthreads.h
@@ -29,7 +29,7 @@
* will see HAVE_THREADS_H, but won't be able to use _Thread_local. */
#if __STDC_VERSION__ >= 201112 && !defined(__STDC_NO_THREADS__) && defined(HAVE_THREADS_H)
# include <threads.h>
-#elif defined(__GNUC__) /* clang is also covered by __GNUC__ */
+#elif defined(__GNUC__) || defined(__SUNPRO_C) || defined(__xlC__) /* clang is covered by __GNUC__ */
# define _Thread_local __thread
#elif defined(_MSC_VER)
# define _Thread_local __declspec(thread)