From dafbfb1d1d8e01beac3704aea4e8df45260a6310 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Martin=20Storsj=C3=B6?= <martin@martin.st>
Date: Thu, 6 May 2021 10:18:41 +0300
Subject: [PATCH] [libcxx] Fix a case of -Wundef warnings. NFC.

Differential Revision: https://reviews.llvm.org/D101978
---
 libcxx/src/locale.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libcxx/src/locale.cpp b/libcxx/src/locale.cpp
index e352a34..903c78a 100644
--- a/libcxx/src/locale.cpp
+++ b/libcxx/src/locale.cpp
@@ -1139,7 +1139,7 @@ ctype<char>::classic_table() noexcept
     return _C_ctype_tab_ + 1;
 #elif defined(__GLIBC__)
     return _LIBCPP_GET_C_LOCALE->__ctype_b;
-#elif __sun__
+#elif defined(__sun__)
     return __ctype_mask;
 #elif defined(_LIBCPP_MSVCRT) || defined(__MINGW32__)
     return __pctype_func();
-- 
2.7.4