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-rw-r--r--Include/pymacro.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/Include/pymacro.h b/Include/pymacro.h
index 856cae7..202b936 100644
--- a/Include/pymacro.h
+++ b/Include/pymacro.h
@@ -118,7 +118,9 @@
"We've reached an unreachable state. Anything is possible.\n" \
"The limits were in our heads all along. Follow your dreams.\n" \
"https://xkcd.com/2200")
-#elif defined(__GNUC__) || defined(__clang__) || defined(__INTEL_COMPILER)
+#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 5))
+# define Py_UNREACHABLE() __builtin_unreachable()
+#elif defined(__clang__) || defined(__INTEL_COMPILER)
# define Py_UNREACHABLE() __builtin_unreachable()
#elif defined(_MSC_VER)
# define Py_UNREACHABLE() __assume(0)