bpo-37681: no_sanitize_thread support from GCC 5.1 (GH-15096)


Fix the following warning with GCC 4.8.5:
Objects/obmalloc.c: warning: ‘no_sanitize_thread’ attribute directive ignored
(cherry picked from commit 7e479c82218450255572e3f5fa1549dc283901ea)

Co-authored-by: Hai Shi <shihai1992@gmail.com>
diff --git a/Objects/obmalloc.c b/Objects/obmalloc.c
index fc7bef6..0501cb9 100644
--- a/Objects/obmalloc.c
+++ b/Objects/obmalloc.c
@@ -45,9 +45,9 @@
 #    define _Py_NO_ADDRESS_SAFETY_ANALYSIS \
         __attribute__((no_address_safety_analysis))
 #  endif
-   // TSAN is supported since GCC 4.8, but __SANITIZE_THREAD__ macro
+   // TSAN is supported since GCC 5.1, but __SANITIZE_THREAD__ macro
    // is provided only since GCC 7.
-#  if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)
+#  if __GNUC__ > 5 || (__GNUC__ == 5 && __GNUC_MINOR__ >= 1)
 #    define _Py_NO_SANITIZE_THREAD __attribute__((no_sanitize_thread))
 #  endif
 #endif