From 7faf7e50757dde2cb8583ee08ef31f4b8312e44f Mon Sep 17 00:00:00 2001
From: Benjamin Peterson <benjamin@python.org>
Date: Thu, 5 Oct 2017 21:15:14 -0700
Subject: closes bpo-31696: don't mention GCC in sys.version when building with
 clang (#3891)

---
 Python/getcompiler.c | 15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

(limited to 'Python/getcompiler.c')

diff --git a/Python/getcompiler.c b/Python/getcompiler.c
index 9d9c33ac2d..59c0dbf92a 100644
--- a/Python/getcompiler.c
+++ b/Python/getcompiler.c
@@ -5,15 +5,14 @@
 
 #ifndef COMPILER
 
-#ifdef __GNUC__
+// Note the __clang__ conditional has to come before the __GNUC__ one because
+// clang pretends to be GCC.
+#if defined(__clang__)
+#define COMPILER "\n[Clang " __clang_version__ "]"
+#elif defined(__GNUC__)
 #define COMPILER "\n[GCC " __VERSION__ "]"
-#endif
-
-#endif /* !COMPILER */
-
-#ifndef COMPILER
-
-#ifdef __cplusplus
+// Generic fallbacks.
+#elif defined(__cplusplus)
 #define COMPILER "[C++]"
 #else
 #define COMPILER "[C]"
-- 
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